1. Formerly Research Fellow, Department of Anesthesiology, University of Utah, College of Medicine, Salt Lake City, Utah, and at present Department Head, Section of Anesthesiology, Department of Surgery, Medical College of Shanghai, Shanghai, China
2. Formerly Instructor, Department of Anesthesiology, University of Utah, College of Medicine, Salt Lake City, Utah and at present of Shreveport, Louisiana
3. Assistant Professor, Department of Anatomy, University of Utah, College of Medicine, Salt Lake City, Utah
4. Associate Clinical Professor and Head of the Department of Anesthesiology, University of Utah, College of Medicine, Salt Lake City, Utah