Buggy, D J Extradural analgesia with clonidine and fentanyl compared with 0.25% bupivacaine in the first stage of labour. [electronic resource] - British journal of anaesthesia Feb 1996 - 319-21 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial ISSN: 0007-0912 Standard No.: 10.1093/bja/76.2.319 doi Subjects--Topical Terms: AdolescentAdultAnalgesia, Epidural--methodsAnalgesia, Obstetrical--methodsAnalgesics, OpioidAnesthetics, LocalBupivacaineClonidineDouble-Blind MethodDrug CombinationsFemaleFentanylHumansLabor Stage, FirstPregnancySympatholytics