Opioids in cancer pain--which one is best?
Wilder-Smith
C H
CH
D000701:Analgesics, Opioid / Q000008:administration & dosage*; D006801:Humans; D009369:Neoplasms / Q000150:complications*; D010146:Pain / Q000188:drug therapy*
D000701:Analgesics, Opioid