title: Dorsal nerve block of penis in Chinese children.
mesh_terms: D002648:Child; D002675:Child, Preschool; D002944:Circumcision, Male; D006801:Humans; D008297:Male; D008614:Meperidine; D009407:Nerve Block; D010149:Postoperative Pain / Q000628:therapy*; D010413:Penis / Q000294:innervation*
chemical_list: D008614:Meperidine