[1] Charles R Drew Univ Med & Sci, Dept Psychiat, Los Angeles, CA 90059 USA
[2] Univ Calif Los Angeles, David Geffen Sch Med, Los Angeles, CA 90095 USA
[3] Univ Calif Los Angeles, Dept Psychol, Los Angeles, CA 90024 USA
[4] Educ Testing Serv, Princeton, NJ 08541 USA
[5] Karolinska Inst, Dept Publ Hlth Sci, Div Social Med, Stockholm, Sweden
[6] Kermanshah Univ Med Sci, Imam Reza Hosp, Dept Anesthesiol Crit Care & Pain Management, Kermanshah, Iran
[7] Shahid Beheshti Univ Med Sci, Sch Med, Tehran, Iran
[8] Charles R Drew Univ Med & Sci, Dept Internal Med, Los Angeles, CA 90059 USA