title: Postoperative pain relief for circumcision in children: comparison among morphine, nerve block, and topical analgesia.
mesh_terms: D000293:Adolescent; D000768:Anesthesia, General; D000772:Anesthesia, Local; D002045:Bupivacaine / Q000008:administration & dosage; D002648:Child; D002675:Child, Preschool; D002944:Circumcision, Male; D002986:Clinical Trials as Topic; D006801:Humans; D007223:Infant; D008012:Lidocaine / Q000008:administration & dosage; D008297:Male; D009020:Morphine / Q000009:adverse effects / Q000627:therapeutic use*; D009407:Nerve Block; D010149:Postoperative Pain / Q000188:drug therapy / Q000628:therapy*; D010413:Penis / Q000294:innervation; D011897:Random Allocation; D012119:Respiration / Q000187:drug effects; D013997:Time Factors; D014839:Vomiting / Q000139:chemically induced
chemical_list: D009020:Morphine; D008012:Lidocaine; D002045:Bupivacaine