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2. Ketorolac and acetaminophen for orthopedic postoperative pain;McQuay;Clin Pharmacol Ther,1986
3. Double-blind controlled trial of indomethacin as an adjunct to narcotic analgesia after major abdominal surgery;Reasbeck;Lancet,1982
4. Efficacy of diclofenac in a single prophylactic dose in postoperative pain;Tigerstedt;Ann Clin Res,1987
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