Comparison of two active analgesic interventions: a suggestion for an 'approximated placebo control'.
J B
JB
Dahl
L S
LS
Rasmussen
D000701:Analgesics, Opioid / Q000627:therapeutic use*; D000772:Anesthesia, Local / Q000379:methods*; D000779:Anesthetics, Local / Q000627:therapeutic use*; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects*; D002045:Bupivacaine / Q000031:analogs & derivatives / Q000627:therapeutic use; D005260:Female; D006801:Humans; D000077554:Levobupivacaine; D008297:Male; D009020:Morphine / Q000627:therapeutic use*; D010149:Postoperative Pain / Q000188:drug therapy*
D000701:Analgesics, Opioid; D000779:Anesthetics, Local; D009020:Morphine; D000077554:Levobupivacaine; D002045:Bupivacaine