Analgesic potency of normorphine in patients with postoperative pain.
D000700:Analgesics; D006801:Humans; D009022:Morphine Derivatives; D010149:Postoperative Pain; D013514:Surgical Procedures, Operative / Q000150:complications*
D000700:Analgesics; D009022:Morphine Derivatives; C010616:normorphine
MORPHINE/related compounds; SURGERY, OPERATIVE/complications