title: A study of awareness during anesthesia.
mesh_terms: D000328:Adult; D000368:Aged; D000768:Anesthesia, General; D000769:Anesthesia, Inhalation; D001285:Atropine; D001544:Benperidol; D003071:Cognition; D004325:Dreams; D005260:Female; D005283:Fentanyl; D006801:Humans; D008297:Male; D008614:Meperidine; D008875:Middle Aged; D009146:Music; D009609:Nitrous Oxide; D010100:Oxygen; D011398:Promethazine; D013514:Surgical Procedures, Operative; D013637:Tape Recording; D013874:Thiopental
chemical_list: D001285:Atropine; D001544:Benperidol; D008614:Meperidine; D011398:Promethazine; D013874:Thiopental; D009609:Nitrous Oxide; D010100:Oxygen; D005283:Fentanyl