RT Journal Article SR Electronic T1 Interventional Magnetic Resonance Imaging of the Distribution of Local Anesthetics during the Placement of Interscalene Brachial Plexus Blocks. JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 55 OP 55 DO 10.1136/rapm-00115550-199924031-00055 VO 24 IS Suppl 1 A1 SB Corn A1 KV Vlassakov A1 L Hsu A1 MA Concepcion YR 1999 UL http://rapm.bmj.com/content/24/Suppl_1/55.abstract AB