[1] Univ Tennessee, Cherokee Hlth Syst Ctr Excellence Children State, Knoxville, TN 37996 USA
[2] RAND Corp, Santa Monica, CA 90406 USA
[3] Univ Calif Los Angeles, Div Child & Adolescent Psychiat, Semel Inst Neurosci & Human Behav, Child OCD Anxiety & Tic Programs, Los Angeles, CA 90024 USA
[4] Univ Calif Los Angeles, LAUSD, RAND Trauma Serv Adaptat Ctr, Natl Child Traumat Stress Network, Los Angeles, CA 90024 USA
[5] Univ Calif Los Angeles, Semel Inst, Div Child Psychiat, Hlth Serv Res Ctr, Los Angeles, CA 90024 USA
[6] Univ Pittsburgh, Sch Med, Pittsburgh, PA 15260 USA