1. Adjunct Associate Professor of Anesthesiology, Department of Anesthesiology, University of California, Los Angeles; Staff Anesthesiologist, Long Beach Community Hospital.
2. Associate Professor of Pediatrics, Department of Pediatrics, University of California, Los Angeles.
3. Clinical Professor of Orthopedics, Department of Orthopedic Surgery, University of Southern California, Los Angeles; Medical Staff, Long Beach Community Hospital.
4. Consultant of Anesthesiology, Department of Anesthesiology, Ludwig-Maximilians University, Klinikum Grosshadern, München; Department of Neuropharmacology, Max-Planck-Institut für Psychiatrie, Martinsried, Federal Republic of Germany.