(Joshi, Shearer) Assistant Professor of Anesthesiology.
(Racz) Anesthesiology Resident.
(Douning, Morrison) Instructor of Anesthesiology.
(Landers) Professor and Chairman.
Received from the Department of Anesthesiology and Pain Management, University of Texas Southwestern Medical Center, Dallas, Texas. Submitted for publication April 11, 1995. Accepted for publication September 11, 1996.
Address reprint requests to Dr. Joshi: Department of Anesthesiology and Pain Management, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, Texas 75235–9068. Address electronic mail to: gjoshi@mednet.swmed.edu.