1. Department of Radiology, The University of Texas Southwestern Medical Center, Dallas, TX.
2. Present: Department of Radiology, Fontana Medical Center, Southern California Permanente Group, 9961 Sierra Avenue, Fontana, CA 92335.
3. Department of Surgery, The University of Texas Southwestern Medical Center, Dallas, TX.
4. Department of Obstetrics and Gynecology, The University of Texas Southwestern Medical Center, Dallas, TX.