Patricia Lester, William R. Saltzman, Dorie Glover, Gregory A. Leskin, Brenda Bursch, and Robert Pynoos are with the Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles. Kirsten Woodward is with the United States Bureau of Navy Medicine and Surgery, Washington, DC. William Beardslee is with Children's Hospital Boston and Harvard Medical School, Boston, MA.