RT Journal Article SR Electronic T1 Patient-controlled regional analgesia with ropivacaine after shoulder surgery: 69. JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 53 OP 53 DO 10.1053/rapm-00115550-200309001-00094 VO 28 IS Suppl 1 A1 Vintar, N YR 2003 UL http://rapm.bmj.com/content/28/Suppl_1/53.2.abstract AB