RT Journal Article SR Electronic T1 Comparison of intrathecal fentanyl, diamorphine (heroin), and morphine in addition to bupivacaine for ceaserean section under spinal anaesthesia. A prospective study: 201. JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 33 OP 33 DO 10.1136/rapm-00115550-200409002-00062 VO 29 IS Suppl 2 A1 Z Kontouli A1 C Ingrassia A1 H Yanny A1 A Ananthi A1 C Newson YR 2004 UL http://rapm.bmj.com/content/29/Suppl_2/33.1.abstract AB