RT Journal Article SR Electronic T1 Caudal ropivacaine plus neostigmine for postoperative analgesia in children: 36. JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 70 OP 70 DO 10.1053/rapm-00115550-200309001-00123 VO 28 IS Suppl 1 A1 E G Sfyra YR 2003 UL http://rapm.bmj.com/content/28/Suppl_1/70.2.abstract AB