A Comparison of the Lateral and Posterior Approach for Brachial Plexus Block
Harald C. Rettig, Mathieu J.M. Gielen, Nigel T.M. Jack, Eric Boersma, Jan Klein
Regional Anesthesia & Pain Medicine Mar 2006, 31 (2) 119-126; DOI: 10.1016/j.rapm.2005.11.001