Intermittent positive pressure breathing in chronic bronchospastic disease.
D001249:Asthma; D001982:Bronchial Diseases; D001991:Bronchitis; D002908:Chronic Disease; D006801:Humans; D007384:Intermittent Positive-Pressure Breathing; D011175:Positive-Pressure Respiration; D011656:Pulmonary Emphysema
ASTHMA; BRONCHIAL DISEASES; BRONCHITIS; POSITIVE-PRESSURE RESPIRATION; PULMONARY EMPHYSEMA