1. Department of Radiology, Harbor-UCLA Medical Center, Torrance, California
2. Dr. Miller's present address is: Department of Radiology, Evergreen General Hospital, 12040 Northeast 128th Street, Kirkland, Washington 98033.
3. Dr. Hieshima's present address is: Department of Radiology, Division of Neuroradiology, UCLA Center for the Health Sciences, Los Angeles, California.
4. Department of Neurological Surgery, LAC-USC Medical Center, Los Angeles. California