RT Journal Article SR Electronic T1 Knotted Peripheral Nerve Catheter JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 487 OP 488 DO 10.1016/S198-7339(03)00403-6 VO 28 IS 5 A1 David MacLeod YR 2003 UL http://rapm.bmj.com/content/28/5/487.abstract AB