1. Department of Neurology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
2. Department of Psychology, School of Behavioral Health, Loma Linda University, Loma Linda, CA, USA
3. Greater Los Angeles VA Healthcare System, West Los Angeles, CA, USA
4. Laboratory of Neuroimaging, Department of Neurology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
5. Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA