Ho, J W Preemptive analgesia in children. Does it exist? [electronic resource] - Regional anesthesia - 125-30 p. digital Publication Type: Clinical Trial; Journal Article; Randomized Controlled Trial ISSN: 0146-521X Subjects--Topical Terms: Abdomen--surgeryAnalgesia--methodsAnesthesia, EpiduralAnesthetics, LocalBupivacaineChildChild, PreschoolDrug Administration ScheduleEpinephrineFemaleHumansInfantMalePain, Postoperative--prevention & controlPostoperative Care