Regional Anesthesia: The Journal of Neural Blockade in Obstetrics, Surgery, & Pain Control Nov 1993, 18 (Suppl 6) 453-460; DOI: 10.1136/rapm-00115550-199318061-00013
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Nigel E.Sharrock, GeorgeGo, RobertMineo, William F.Urmey, Richard G.Arthur
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