RT Journal Article SR Electronic T1 Comparison of plain bupivacaine and plain ropivacaine administered in same doses for spinal anesthesia in endourology: 112. JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 37 OP 37 DO 10.1016/rapm-00115550-200609002-00071 VO 31 IS Suppl 2 A1 B. Hadri A1 D. Kryeziu A1 I. Krasniqi A1 A. Balaj A1 A. Hasani A1 S. H. Hasimja YR 2006 UL http://rapm.bmj.com/content/31/Suppl_2/37.2.abstract AB