1. Associate Professor, Department of Surgery, U.C.S.D. Medical Center.
2. Post-Doctoral Research Fellow, Department of Surgery, U.C.S.D. Medical Center.
3. Assistant Professor of Surgery, University of Colorado Medical School, Denver, Colorado.
4. Research Assistant, Department of Surgery, University of Colorado Medical School, Denver, Colorado.
5. Assistant Professor, Department of Anesthesiology, University of Colorado Medical School, Denver, Colorado.
6. Research Fellow, Department of Surgery, University of Colorado Medical School, Denver, Colorado.
7. Professor and Chairman, Department of Biostatistics, Medical College of Virginia, Virginia Commonwealth University, Richmond, Virginia.