title: Respiratory studies associated with general anaesthesia and controlled ventilation in elderly patients.
mesh_terms: D000005:Abdomen / Q000601:surgery; D000367:Age Factors; D000368:Aged; D000768:Anesthesia, General; D002245:Carbon Dioxide / Q000097:blood; D005260:Female; D006801:Humans; D000860:Hypoxia / Q000209:etiology* / Q000517:prevention & control; D008297:Male; D008875:Middle Aged; D010100:Oxygen / Q000097:blood; D010502:Perineum / Q000601:surgery; D011183:Postoperative Complications; D012119:Respiration; D012131:Respiratory Insufficiency / Q000209:etiology*; D013147:Spirometry
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen