Eric Vermetten, M.D., Ph.D., is Head of Research for Military Mental Health at Central Military Hospital and Associate Professor of Psychiatry at the University Medical Center Utrecht in Utrecht, the Netherlands.Martin J. Dorahy, Ph.D., is Clinical and Research Psychologist at the Trauma Resource Centre, North & West Belfast Health and Social Services Trust, and Research Tutor in the School of Psychology at The Queen's University of Belfast in Northern Ireland.David Spiegel, M.D., is Jack, Lulu, and Sam Wilson Professor at the School of Medicine, Associate Chair of Psychiatry and Behavioral Sciences, and Medical Director at the Center for Integrative Medicine at Stanford University in Stanford, California.