RT Journal Article SR Electronic T1 Brachial plexus Anesthesia with Verapamil and or Morphine JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 12 OP 12 DO 10.1136/rapm-00115550-199924031-00012 VO 24 IS Suppl 1 A1 Scott S. Reuben A1 Joel M. Kreitzer YR 1999 UL http://rapm.bmj.com/content/24/Suppl_1/12.abstract AB