RT Journal Article SR Electronic T1 Epidural Bupivacaine/Fentanyl versus IVPCA for Post-Nephrectomy Pain JF Regional Anesthesia: The Journal of Neural Blockade in Obstetrics, Surgery, & Pain Control JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 123 OP 123 DO 10.1136/rapm-00115550-199520021-00123 VO 20 IS Suppl 2 A1 Charles R. Williams A1 Brian A. Fedorchak A1 Naggy Mekail A1 Jeffrey A. Grass YR 1995 UL http://rapm.bmj.com/content/20/Suppl_2/123.abstract AB