Atelectasis during anaesthesia (spontaneous atelectasis).
D000368:Aged; D000758:Anesthesia; D000769:Anesthesia, Inhalation / Q000150:complications*; D000776:Anesthesiology; D006801:Humans; D001261:Pulmonary Atelectasis / Q000209:etiology*
ANESTHESIA, INHALATION/complications; ATELECTASIS/etiology and pathogenesis