Study I: A clinical evaluation of butorphanol tartrate (Stadol) in balanced anesthesia.
D000293:Adolescent; D000328:Adult; D000368:Aged; D000770:Anesthesia, Endotracheal; D000777:Anesthetics; D002077:Butorphanol; D004341:Drug Evaluation; D005260:Female; D006801:Humans; D008875:Middle Aged; D009019:Morphinans / Q000009:adverse effects; D011182:Postoperative Care; D011229:Preanesthetic Medication; D011247:Pregnancy; D011897:Random Allocation
D000777:Anesthetics; D009019:Morphinans; D002077:Butorphanol