1. Department of Psychiatry, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania.
2. Department of Animal Biology, University of Pennsylvania School of Veterinary Medicine, Philadelphia, Pennsylvania.
3. Department Obstetrics/Gynecology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania.
4. Departments of Psychiatry and Obstetrics/Gynecology, Virginia Commonwealth University, Richmond, Virginia.
5. Department of Psychology, University of Minnesota, Minneapolis, Minnesota.
6. School of Social Work, University of Southern California, Los Angeles, California.
7. Anacapa Sciences, Inc., Santa Barbara, California.