1. Department of Anesthesiology, The University of Texas Medical Branch and Shriners Burns Hospital, Galveston, TX 77555, U.S.A.
2. Department of Pathology, The University of Texas Medical Branch and Shriners Burns Hospital, Galveston, TX 77555, U.S.A.
3. Department of Pediatrics, The University of Texas Medical Branch and Shriners Burns Hospital, Galveston, TX 77555, U.S.A.