1. Department of Pediatrics; LABioMed Institute at Harbor-UCLA Medical Center and David Geffen School of Medicine at UCLA; Los Angeles; California
2. Pediatrics Division; Center for the Study of Children at Risk; Warren Alpert Medical School of Brown University; Women and Infants Hospital; Providence; Rhode Island
3. Department of Psychology; The University of Tulsa; Tulsa; Oklahoma
4. Blank Hospital Regional Child Protection Center-Iowa Health; Des Moines; Iowa
5. Family Science Department; Center on Young Adult Health and Development; University of Maryland School of Public Health; College Park; Maryland
6. Intramural Research Program; National Institute on Drug Abuse; National Institutes of Health; Baltimore; Maryland
7. Department of Pediatrics; John A. Burns School of Medicine; University of Hawaii; Honolulu; Hawaii
8. Miller Children's Hospital Long Beach (MCHLB); Long Beach; California