Spread of spinal anesthesia in patients having perianal surgery in the jackknife position: effects of baricity of 0.5% bupivacaine and positioning during and after induction of spinal anesthesia
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PII: S0952-8180(09)00214-1
doi:10.1016/j.jclinane.2008.11.008
© 2009 Elsevier Inc. All rights reserved.
