1. Department of Neurosurgery, Tokai University, School of Medicine, Tokai Oiso Hospital, Kanagawa, Japan, and Childrens Hospital Los Angeles, Los Angeles, California; and The Rudi Schulte Research Institute, Santa Barbara, California
2. Department of Pediatrics, Keck School of Medicine, University of Southern California, Los Angeles, and Childrens Hospital Los Angeles, Los Angeles, California
3. Department of Neurological Surgery, Keck School of Medicine, University of Southern California, Los Angeles, and Childrens Hospital Los Angeles, Los Angeles, California; and The Rudi Schulte Research Institute, Santa Barbara, California