title: "Closing volume" and its relationship to gas exchange in seated and supine positions.
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D002302:Cardiac Output; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010100:Oxygen / Q000097:blood*; D011187:Posture; D011650:Pulmonary Alveoli / Q000502:physiology; D011652:Pulmonary Circulation; D012119:Respiration; D012737:Sex Factors; D012907:Smoking; D013147:Spirometry
chemical_list: D010100:Oxygen