[1] Adventist Hlth White Mem, Internal Med, Los Angeles, CA USA
[2] Adventist Hlth White Mem, Family Med, Los Angeles, CA USA
[3] Univ Southern Calif, Neurol, Keck Sch Med, Los Angeles, CA 90007 USA
[4] Adventist Hlth White Mem, Neurol, Los Angeles, CA 90033 USA
[5] Loma Linda Univ, Sch Med, Neurol, Loma Linda, CA 92350 USA