Relationship of the head-down position of postural drainage to lung parameters in chronic obstructive lung disease.
D000328:Adult; D000368:Aged; D004322:Drainage; D006801:Humans; D008168:Lung / Q000503:physiopathology; D008171:Lung Diseases / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D011187:Posture; D013147:Spirometry; D013223:Statistics as Topic