Dottrens, M Comparison of extradural administration of sufentanil, morphine and sufentanil-morphine combination after caesarean section. [electronic resource] - British journal of anaesthesia Jul 1992 - 9-12 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial ISSN: 0007-0912 Standard No.: 10.1093/bja/69.1.9 doi Subjects--Topical Terms: AdolescentAdultAnalgesia, Epidural--methodsAnalgesia, Obstetrical--methodsAnalgesicsCesarean SectionDouble-Blind MethodDrug CombinationsFemaleFentanyl--analogs & derivativesHumansMorphinePain, Postoperative--drug therapyPregnancySufentanil