(Reves) Professor and Chairman, Department of Anesthesiology; Director of the Duke Heart Center, Duke University Medical Center.
(Rogers) Professor of Anesthesiology; Vice Chancellor for Health Affairs; Executive Director and CEO, Duke University Hospital and Health Network.
(Smith) Assistant Professor, Division of Biometry, Community and Family Medicine; Assistant Professor, Experimental Surgery, Department of Surgery, Duke University Medical Center.
Received from the Duke University Medical Center and Duke University Hospital and Health Network, Durham, North Carolina. Submitted for publication May 30 1995. Accepted for publication December 18, 1995.
Address reprint requests to Dr. Reves: Department of Anesthesiology, Duke University Medical Center, Durham, North Carolina 27710.