Radiologically undetectable pulmonary collapse in the supine position.
D000328:Adult; D000758:Anesthesia; D001784:Blood Gas Analysis; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging*; D008171:Lung Diseases / Q000000981:diagnostic imaging*; D008297:Male; D010100:Oxygen; D011187:Posture; D011859:Radiography
D010100:Oxygen