Cepeda, M Soledad The combination of low dose of naloxone and morphine in PCA does not decrease opioid requirements in the postoperative period. [electronic resource] - Pain Mar 2002 - 73-9 p. digital Publication Type: Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't ISSN: 0304-3959 Standard No.: 10.1016/s0304-3959(01)00425-0 doi Subjects--Topical Terms: AdultAnalgesia, Patient-ControlledAnalgesics, Opioid--administration & dosageDouble-Blind MethodDrug Therapy, CombinationFemaleHumansMaleMiddle AgedMorphine--administration & dosageNaloxone--administration & dosageNarcotic Antagonists--administration & dosagePain, Postoperative--drug therapyProspective StudiesSex Factors