1. The Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, Boston, Massachusetts.
2. Tufts University School of Medicine, Boston, Massachusetts.
3. The Zucker Hillside Hospital, North Shore-LIJ Health System, Glen Oaks, New York.
4. Center for Clinical and Community Research, Children's National Health System, Washington, DC.
5. Department of Psychiatry and Biobehavioral Sciences, University of California at Los Angeles, Los Angeles, California.
6. Floating Hospital for Children, Tufts Medical Center, Boston, Massachusetts.