Thema
chronic obstructive pulmonary disease
2
chronic respiratory insufficiency
2
Diseases of the respiratory system
1
Edmonton Symptom Assessment System
1
Medicine (General)
1
activities of daily living
1
dyspnea on exercise
1
interstitial lung disease
1
long-term oxygen therapy
1
modified Medical Research Council dyspnea questionnaire
1
noninvasive ventilation
1
obesity hypoventilation syndrome
1
survival
1