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    Pulmonology
    Approach to the Pulmonary Patient
    • Evaluation of the Patient With Pulmonary Issues
      • History
      • Physical Examination
        • Inspection
        • Percussion and palpation
        • Auscultation
    Symptoms of Pulmonary Disorders
    • Cough in Adults
      • General reference
      • Pathophysiology
        • Pathophysiology references
      • Evaluation
        • History
        • Physical examination
        • Red flags
        • Interpretation of findings
        • Testing
        • Evaluation reference
      • Treatment
        • Treatment references
      • Key Points
    • Dyspnea
      • Etiology
        • Etiology reference
      • Pathophysiology
        • Pathophysiology references
      • Evaluation
        • History
        • Physical examination
        • Red flags
        • Interpretation of findings
        • Testing
        • Evaluation reference
      • Treatment
        • Treatment reference
      • Key Points
    • Hyperventilation Syndrome
      • General references
      • Symptoms and Signs
      • Diagnosis
        • Diagnosis references
      • Treatment
        • Treatment reference
    • Hemoptysis
      • Etiology
        • Massive hemoptysis
      • Pathophysiology
        • Pathophysiology reference
      • Evaluation
        • History
        • Physical examination
        • Red flags
        • Interpretation of findings
        • Testing
        • Cryptogenic (idiopathic) hemoptysis
        • Diagnosis reference
      • Treatment
        • Massive hemoptysis
        • Minor hemoptysis
        • Treatment references
      • Key Points
    • Solitary Pulmonary Nodule
      • General reference
      • Etiology
        • Etiology reference
      • Evaluation
        • History
        • Physical examination
        • Testing
        • Evaluation references
      • Treatment
        • Treatment reference
    • Stridor
      • Etiology
        • Children
        • Adults
        • Etiology reference
      • Pathophysiology
        • Pathophysiology reference
      • Evaluation
        • History
        • Physical examination
        • Red flags
        • Interpretation of findings
        • Testing
      • Treatment
      • Key Points
    • Vocal Fold Dysfunction
      • General references
      • Treatment
    • Wheezing
      • Etiology
      • Pathophysiology
        • Pathophysiology references
      • Evaluation
        • History
        • Physical examination
        • Red flags
        • Interpretation of findings
        • Testing
      • Treatment
      • Key Points
    Diagnostic and Therapeutic Pulmonary Procedures
    • Thoracentesis
      • Indications
      • Contraindications
      • Procedure
    • Chest Imaging
      • Conventional Chest Radiograph Techniques
        • Chest radiograph
        • Chest fluoroscopy
      • Chest Computed Tomography (CT)
        • CT angiography
      • Magnetic Resonance Imaging (MRI) of the Chest
        • Chest MRI references
      • Thoracic Ultrasound
        • Ultrasound references
      • Nuclear Lung Scanning
        • V/Q scanning
        • Positron emission tomography (PET) of the lungs
        • Nuclear lung scanning references
    • Electrocardiography (ECG) in Pulmonary Disorders
      • References
    • Bronchoscopy
      • Indications
        • Indications reference
      • Contraindications
      • Procedure
        • Procedure references
      • Navigational Bronchoscopy
        • Navigational bronchoscopy references
      • Complications
        • Complications references
    • Mediastinoscopy and Mediastinotomy
      • Indications
        • Indications reference
      • Contraindications
      • Procedure
      • Complications
        • Complications reference
    • Pleural Biopsy
      • References
    • Thoracoscopy and Video-Assisted Thoracoscopic Surgery
      • General reference
      • Indications
        • Indications references
      • Contraindications
      • Procedure
      • Complications
    • Thoracotomy
      • Indications
      • Contraindications
      • Procedure
      • Complications
    • Transthoracic Needle Biopsy
      • Indications
        • Indications references
      • Contraindications
      • Procedure
      • Complications
        • Complications references
    How To Do Pulmonary Procedures
    • How To Do Needle Thoracostomy
      • Indications
      • Contraindications
      • Complications
      • Equipment
      • Additional Considerations
      • Relevant Anatomy
      • Positioning
      • Step-by-Step Description of Procedure
      • Aftercare
      • Warnings and Common Errors
      • Tips and Tricks
      • References
    • How To Do Thoracentesis
      • Indications
      • Contraindications
      • Complications
      • Equipment
      • Additional Considerations
      • Relevant Anatomy
      • Positioning
      • Step-by-Step Description of Procedure
      • Aftercare
      • Warnings and Common Errors
      • Tips and Tricks
      • References
    • How To Do Tube and Catheter Thoracostomy
      • Indications
      • Contraindications
      • Complications
      • Equipment
        • Equipment for surgical tube thoracostomy
        • Equipment for catheter thoracostomy
      • Additional Considerations
      • Relevant Anatomy
      • Positioning
      • Step-by-Step Description of Procedure
      • Aftercare
      • Warnings and Common Errors
      • Tips and Tricks
      • References
    Tests of Pulmonary Function (PFT)
    • Overview of Tests of Pulmonary Function
    • Airflow, Lung Volumes, and Flow-Volume Loop
      • Airflow
      • Lung volume
      • Flow-volume loop
      • General references
      • Patterns of Abnormalities
        • Obstructive disorders
        • Restrictive disorders
        • Patterns of abnormalities references
      • Bronchoprovocation Challenge
        • Bronchprovocation challenge references
    • Measurement of Gas Exchange
      • Diffusing Capacity for Carbon Monoxide
        • Conditions that decrease DLCO
        • Conditions that increase DLCO
        • DLCO reference
      • Pulse Oximetry
      • Arterial Blood Gas (ABG) Sampling
        • Hypoxemia
        • Hypercapnia and Hypocapnia
        • Carboxyhemoglobinemia
        • Methemoglobinemia
    • Tests of Respiratory Muscle Function
    • Exercise Testing
      • Six-minute walk test
      • Cardiopulmonary exercise testing (CPET)
    Acute Bronchitis
    • Acute Bronchitis
      • General references
      • Symptoms and Signs
        • Symptoms and signs reference
      • Diagnosis
        • Diagnosis reference
      • Treatment
        • Treatment references
      • Key Points
    Asthma and Related Disorders
    • Pharmacologic Treatment of Asthma
      • Beta agonists
      • Anticholinergics (antimuscarinics)
      • Glucocorticoids
      • Mast cell stabilizers
      • Leukotriene modifiers
      • Methylxanthines
      • Biologic medications
      • Other therapeutic approaches
      • References
    • Treatment of Acute Asthma Exacerbations
      • Emergency department care
      • Hospitalization
      • Other therapy
      • References
    • Asthma
      • General reference
      • Epidemiology
        • Epidemiology references
      • Etiology
        • Reactive airways dysfunction syndrome (RADS) and irritant-induced asthma
        • Etiology references
      • Pathophysiology
        • Asthma triggers
        • Response
        • Pathophysiology references
      • Classification
        • Severity
        • Control
        • Impairment
        • Risk
      • Symptoms and Signs
      • Diagnosis
        • Pulmonary function tests
        • Other tests
        • Evaluation of exacerbations
        • Diagnosis references
      • Treatment
        • Control of triggering factors
        • Pharmacotherapy
        • Bronchial thermoplasty
        • Monitoring response to treatment
        • Patient education
        • Treatment of acute asthma exacerbation
        • Treatment of chronic asthma
        • Exercise-induced bronchoconstriction
        • Aspirin-exacerbated respiratory disease
        • Investigational therapies
        • Treatment references
      • Special Populations
        • Infants, children, and adolescents
        • Pregnant patients
        • Older patients
        • Special populations references
      • Prognosis
        • Prognosis references
      • Key Points
      • More Information
    • Allergic Bronchopulmonary Aspergillosis (ABPA)
      • General references
      • Pathophysiology
        • Pathophysiology reference
      • Symptoms and Signs
      • Diagnosis
        • Diagnosis references
      • Treatment
        • Treatment references
      • Key Points
    Bronchiectasis and Atelectasis
    • Atelectasis
      • Etiology
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Treatment references
      • Prevention
      • Key Points
    • Bronchiectasis
      • Etiology
        • Etiology references
      • Pathophysiology
        • Complications
        • Pathophysiology references
      • Symptoms and Signs
      • Diagnosis
        • Imaging
        • Pulmonary function tests
        • Diagnosis of cause
        • Definition and evaluation of exacerbations
        • Diagnosis reference
      • Treatment
        • Acute exacerbations
        • Complications
        • Treatment references
      • Prognosis
        • Prognosis references
      • Key Points
    Chronic Obstructive Pulmonary Disease and Related Disorders
    • Treatment of Stable COPD
      • Smoking Cessation
        • Smoking cessation reference
      • Medication Therapy
        • Beta-agonists
        • Anticholinergics
        • Inhaled corticosteroids
        • Theophylline
        • Phosphodiesterase-4 inhibitors
        • Macrolide antibiotics
        • Medication therapy references
      • Oxygen Therapy
        • Oxygen administration
        • Oxygen therapy reference
      • Vaccinations
      • Nutrition
        • Nutrition reference
      • Pulmonary Rehabilitation
        • Pulmonary rehabilitation reference
      • Surgery
        • Lung volume reduction surgery
        • Endobronchial valve placement
        • Lung transplantation
        • Surgery references
      • Key Points
    • Treatment of Acute COPD Exacerbation
      • Oxygen Supplementation
      • Ventilatory Assistance
        • Ventilatory assistance references
      • Medication Therapy
        • Beta-agonists
        • Anticholinergic agents
        • Corticosteroids
        • Antibiotics
        • Other medications
        • Medication therapy reference
      • Key Points
    • Chronic Obstructive Pulmonary Disease (COPD)
      • General reference
      • Epidemiology
        • Epidemiology references
      • Etiology
        • Smoking and other inhalational exposures
        • Genetic factors
        • Etiology references
      • Pathophysiology
        • Inflammation
        • Infection
        • Airflow limitation
        • Complications
        • Pathophysiology references
      • Symptoms and Signs
        • Acute exacerbations
      • Diagnosis
        • Pulmonary function tests
        • Imaging tests
        • Adjunctive tests
        • Evaluation of exacerbations
        • Diagnosis references
      • Treatment
        • End-of-life care
      • Prognosis
        • Prognosis reference
      • Key Points
    • Alpha-1 Antitrypsin Deficiency
      • Pathophysiology
        • Liver
        • Lungs
        • Other tissues
        • Pathophysiology references
      • Classification
        • Classification reference
      • Symptoms and Signs
      • Diagnosis
        • Diagnosis reference
      • Treatment
        • Treatment reference
      • Prognosis
      • Key Points
    Diffuse Alveolar Hemorrhage and Pulmonary-Renal Syndrome
    • Diffuse Alveolar Hemorrhage
      • Pathophysiology
        • Pathophysiology reference
      • Etiology
        • Etiology reference
      • Symptoms and Signs
        • Symptoms and signs reference
      • Diagnosis
        • Evaluation of the cause
      • Treatment
        • Treatment references
      • Prognosis
        • Prognosis reference
      • Key Points
    • Idiopathic Pulmonary Hemosiderosis
      • General reference
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Treatment reference
    • Pulmonary-Renal Syndrome
      • Etiology
      • Symptoms and Signs
      • Diagnosis
        • Diagnosis reference
      • Treatment
        • Treatment reference
      • Key Points
    • Anti-Glomerular Basement Membrane (Anti-GBM) Disease
      • General references
      • Pathophysiology
        • Pathophysiology reference
      • Symptoms and Signs
        • Symptoms and signs reference
      • Diagnosis
        • Diagnosis references
      • Treatment
        • Treatment reference
      • Prognosis
        • Prognosis references
      • Key Points
    Environmental and Occupational Pulmonary Diseases
    • Asbestosis
      • Risk factors
      • Pathophysiology
        • Pathophysiology reference
      • Symptoms and Signs
      • Diagnosis
      • Treatment
      • Prognosis
      • Prevention
      • Key Points
    • Mesothelioma
      • General references
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Treatment references
      • Prognosis
        • Prognosis reference
      • Key Points
    • Asbestos-Related Pleural Disease
    • Overview of Environmental and Occupational Pulmonary Diseases
      • General reference
      • Prevention
      • More Information
    • Air Pollution–Related Illness
      • Prevention
        • Prevention references
    • Overview of Asbestos-Related Disorders
    • Beryllium Disease
      • Pathophysiology
      • Pathophysiology reference
      • Etiology
      • Symptoms and Signs
        • Symptoms and signs reference
      • Diagnosis
        • Diagnosis reference
      • Treatment
        • Treatment references
      • Prognosis
      • Prognosis reference
      • Prevention
      • Key Points
      • More Information
    • Building-Related Illnesses
      • Specific building-related illnesses
      • Nonspecific building-related symptoms
      • Diagnosis
        • Patient evaluation
        • Workplace evaluation
      • Treatment
      • More Information
    • Byssinosis
      • Etiology
      • Symptoms and Signs
        • Symptoms and signs reference
      • Diagnosis
      • Treatment
    • Coal Worker Pneumoconiosis
      • General reference
      • Etiology
      • Pathophysiology
        • Pathophysiology reference
      • Symptoms and Signs
        • Complications
      • Diagnosis
        • Diagnosis reference
      • Treatment
      • Prevention
      • Key Points
      • More Information
    • Work-Related Asthma
      • Sensitizer-induced occupational asthma
      • Irritant exposure and reactive airways dysfunction syndrome (RADS)
      • Work-exacerbated asthma
      • General references
      • Symptoms and Signs
      • Diagnosis
        • Work-exacerbated asthma
      • Treatment
      • Prevention
      • Key Points
    • Silicosis
      • Etiology
      • Pathophysiology
        • Complications
        • Pathophysiology references
      • Symptoms and Signs
      • Diagnosis
        • Imaging
        • Additional diagnostic testing
        • Diagnosis references
      • Treatment
        • Acute silicosis
        • Chronic silicosis
      • Prevention
      • Key Points
      • More Information
    • Irritant Gas Inhalation Injury
      • Acute Exposure to Irritant Gas
        • Complications
        • Symptoms and Signs
        • Diagnosis
        • Treatment
        • Prognosis
        • Prevention
      • Chronic Exposure to Irritant Gas
      • Exposure to Smoke
      • Key Points
    Interstitial Lung Diseases
    • Idiopathic Pleuroparenchymal Fibroelastosis
      • General reference
      • Etiology
        • Etiology reference
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Treatment reference
      • Prognosis
        • Prognosis reference
    • Idiopathic Pulmonary Fibrosis (IPF)
      • General references
      • Etiology
        • Etiology reference
      • Pathology
        • Pathology reference
      • Symptoms and Signs
        • Symptoms and signs reference
      • Diagnosis
      • Treatment
        • Treatment references
      • Prognosis
        • Prognosis reference
      • Key Points
    • Desquamative Interstitial Pneumonia (DIP)
      • Diagnosis
      • Treatment
        • Treatment reference
    • Nonspecific Interstitial Pneumonia (NSIP)
      • Diagnosis
      • Treatment
        • Treatment reference
      • Key Points
    • Cryptogenic Organizing Pneumonia (COP)
      • General reference
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Treatment reference
    • Respiratory Bronchiolitis–Associated Interstitial Lung Disease (RBILD)
      • Symptoms and Signs
      • Diagnosis
      • Treatment
    • Acute Interstitial Pneumonia (AIP)
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Treatment reference
    • Chronic Eosinophilic Pneumonia
      • General reference
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Treatment reference
    • Acute Eosinophilic Pneumonia
      • General references
      • Symptoms and Signs
      • Diagnosis
      • Treatment
    • Löffler Syndrome
      • Reference
    • Overview of Interstitial Lung Disease
      • References
    • Overview of Idiopathic Interstitial Pneumonias
      • General reference
      • Symptoms and Signs
      • Diagnosis
      • Treatment
      • Key Points
    • Drug-Induced Pulmonary Disease
      • Treatment
      • Prevention
    • Overview of Eosinophilic Pulmonary Diseases
      • Diagnosis
      • Reference
    • Hypersensitivity Pneumonitis
      • General references
      • Etiology
      • Pathophysiology
        • Pathophysiology reference
      • Symptoms and Signs
        • Acute hypersensitivity pneumonitis
        • Subacute hypersensitivity pneumonitis
      • Chronic hypersensitivity pneumonitis
      • Diagnosis
        • Imaging tests
        • Pulmonary function tests
        • Bronchoalveolar lavage
        • Lung biopsy
        • Other tests
        • Diagnosis references
      • Treatment
        • Treatment references
      • Prognosis
      • Prevention
      • Key Points
    • Lymphangioleiomyomatosis
      • General references
      • Etiology
      • Symptoms and Signs
      • Diagnosis
        • Diagnosis references
      • Treatment
        • Treatment references
      • Prognosis
        • Prognosis reference
      • Key Points
      • More Information
    • Lymphoid Interstitial Pneumonia (LIP)
      • Symptoms and Signs
        • Symptoms and signs reference
      • Diagnosis
        • Diagnosis reference
      • Treatment
      • Prognosis
        • Prognosis reference
      • Key Points
    • Pulmonary Alveolar Proteinosis
      • Etiology
        • Etiology references
      • Pathophysiology
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Treatment reference
      • Prognosis
        • Prognosis reference
      • Key Points
    • Pulmonary Langerhans Cell Histiocytosis
      • General references
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Treatment reference
      • Prognosis
        • Prognosis reference
      • Key Points
    Lung Abscess
    • Lung Abscess
      • Etiology
        • Etiology reference
      • Pathophysiology
        • Pathophysiology reference
      • Symptoms and Signs
        • Symptoms and signs references
      • Diagnosis
        • Gram stain and cultures
        • Differential diagnosis
        • Diagnosis references
      • Treatment
        • Treatment references
      • Key Points
    Mediastinal and Pleural Disorders
    • Mediastinal Masses
      • Etiology
        • Adults
        • Children
        • Etiology references
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Treatment reference
      • Key Points
    • Mediastinitis
      • Esophageal perforation
      • Median sternotomy
      • Chronic fibrosing mediastinitis
      • References
    • Pleural Effusion
      • Etiology
        • Etiology references
      • Symptoms and Signs
      • Diagnosis
        • Presence of effusion
        • Cause of effusion
        • Diagnosis references
      • Treatment
        • Parapneumonic effusion and empyema
        • Malignant pleural effusion
        • Treatment references
      • Key Points
    • Pleural Fibrosis and Calcification
      • Postinflammatory
      • Asbestos-related
    • Pneumomediastinum
      • Treatment
    • Pneumothorax
      • Etiology
      • Pathophysiology
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Treatment references
      • Complications
      • Prevention
        • Prevention references
      • Key Points
    • Viral Pleuritis
    Pneumonia
    • Pneumocystis jirovecii Pneumonia
      • Diagnosis
      • Treatment
      • Prognosis
      • Prevention
      • Key Points
    • Ventilator-Associated Pneumonia
      • Etiology
        • Risk factors
        • Pathogens
        • Etiology references
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Treatment reference
      • Prognosis
      • Prevention
      • Key Points
    • Overview of Pneumonia
      • Reference
    • Community-Acquired Pneumonia
      • Etiology
        • Bacterial causes
        • Viral causes
        • Other causes
        • Pneumonia in children
      • Symptoms and Signs
      • Diagnosis
        • Pathogen identification
        • Diagnosis references
      • Treatment
        • Risk stratification
        • Antimicrobials
        • Supportive care
        • Treatment references
      • Health Care-Associated Pneumonia
        • Health care-associated pneumonia reference
      • Prognosis
      • Prevention
      • Key Points
      • More Information
    • Hospital-Acquired Pneumonia
      • Etiology
        • Risk factors
        • Pathogens
        • Etiology reference
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Treatment reference
      • Prognosis
      • Key Points
    • Pneumonia in Immunocompromised Patients
      • Symptoms and Signs
      • Diagnosis
        • Pathogen identification
      • Treatment
      • Prevention
      • Key Points
    • Aspiration Pneumonitis and Pneumonia
      • Pathophysiology
        • Chemical pneumonitis
        • Aspiration pneumonia
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Treatment references
      • Prevention
      • Key Points
    Pulmonary Embolism
    • Nonthrombotic Pulmonary Embolism
      • Air embolism
      • Fat embolism
      • Amniotic fluid embolism
      • Septic embolism
      • Foreign body embolism
      • Tumor embolism
      • Cement embolism
    • Pulmonary Embolism (PE)
      • General references
      • Etiology
        • Etiology reference
      • Pathophysiology
        • Pathophysiology references
      • Symptoms and Signs
      • Diagnosis
        • Clinical probability
        • Diagnostic testing
        • Diagnosis references
      • General Treatment
        • Pulmonary embolism response team (PERT)
        • General treatment references
      • Anticoagulation
        • Initial anticoagulation
        • Maintenance anticoagulation
        • Duration of anticoagulation
        • Anticoagulation references
      • Rapid Reduction of Clot Burden
        • Systemic thrombolytic therapy
        • Catheter-directed therapy
        • Surgical embolectomy
        • Extracorporeal membrane oxygenation
        • Rapid reduction in clot burden references
      • Prognosis
        • Prognosis references
      • Prevention
        • Prevention of acute venous thromboembolism
        • Medication regimens for pulmonary embolism prevention
        • Prophylactic devices for pulmonary embolism
        • Choices for prevention of pulmonary embolism
        • Prevention references
      • Key Points
    Pulmonary Hypertension
    • Portopulmonary Hypertension
      • References
    • Hepatopulmonary Syndrome
      • General reference
      • Diagnosis
      • Treatment
        • Treatment references
      • Key Points
    • Pulmonary Hypertension
      • Etiology
      • Etiology references
      • Pathophysiology
        • Increased pulmonary vascular resistance
        • Increased pulmonary venous pressure
        • Increased pulmonary venous blood flow
        • Pathophysiology reference
      • Symptoms and Signs
      • Diagnosis
        • Diagnosis references
      • Treatment
        • Pulmonary arterial hypertension, Group 1
        • Pulmonary hypertension, groups 2 to 5
        • Treatment references
      • Prognosis
        • Prognosis references
      • Key Points
    Pulmonary Rehabilitation
    • Chest Physiotherapy
      • Contraindications
      • Procedure
      • Complications
      • General references
    • Pulmonary Rehabilitation
      • Pulmonary rehabilitation programs
      • Indications
      • Contraindications
      • Complications
      • Procedure
      • General references
    Sarcoidosis
    • Sarcoidosis
      • Epidemiology
        • Epidemiology reference
      • Etiology
        • Etiology references
      • Pathophysiology
        • Pathophysiology references
      • Symptoms and Signs
        • Löfgren syndrome
        • Heerfordt syndrome
        • Blau syndrome
        • Symptoms and signs references
      • Diagnosis
        • Sites for biopsy
        • Exclusion of other diagnoses
        • Disease severity assessment
        • Diagnosis references
      • Treatment
        • Corticosteroids
        • Other immunosuppressants
        • Tumor necrosis factor inhibitors
        • Other treatment considerations
        • Treatment references
      • Prognosis
        • Prognosis references
      • Key Points
    Sleep Apnea
    • Obstructive Sleep Apnea (OSA)
      • General references
      • Pathophysiology
        • Related disorders
        • Complications
        • Pathophysiology references
      • Etiology
        • Etiology references
      • Symptoms and Signs
        • Symptoms and signs references
      • Diagnosis
        • Sleep studies
        • Classification of severity
        • Diagnosis references
      • Treatment
        • Control of risk factors
        • Continuous positive airway pressure (CPAP)
        • Oral appliances
        • Surgery
        • Upper airway stimulation
        • Adjunctive treatments
        • Patient education and support
        • Treatment references
      • Prognosis
      • Key Points
      • More Information
    • Obstructive Sleep Apnea (OSA) in Children
      • General reference
      • Etiology
      • Symptoms and Signs
      • Diagnosis
        • Diagnosis reference
      • Treatment
        • Treatment references
      • Key Points
    • Central Sleep Apnea
      • General references
      • Pathophysiology
      • Etiology
        • Etiology references
      • Symptoms and Signs
      • Diagnosis
        • Diagnosis references
      • Treatment
        • Treatment references
      • More Information
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