Key points are not available for this paper at this time.
Findings from this Level 5 study should not yet change practice; leaves open questions for future research.
Department of Anesthesiology, University of Texas Medical Branch, Galveston, TX. Correspondence address: Donald S Prough, MD, Department of Anesthesiology, University of Texas Medical Branch, 301 University Blvd, Galveston, TX 77555-0591. Submitted June 29, 2004; revised and accepted December 9, 2004. Competing interests declared: None.
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Donald S. Prough (2005) studied this question.
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