RT Journal Article SR Electronic T1 Interscalene Block with a Peripheral Nerve Stimulator: A Deltoid Twitch is as Successful an Indicator of Correct Needle Placement as a Biceps Twitch. JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 31 OP 31 DO 10.1136/rapm-00115550-199823031-00031 VO 23 IS Suppl 1 A1 M U Saiyed A1 WB Silverstein A1 AR Brown YR 1998 UL http://rapm.bmj.com/content/23/Suppl_1/31.abstract AB