1. Dr. Freidl, Dr. Stroeh, Dr. Albano, and Dr. Rynn are with the Department of Psychiatry and Ms. Steinberg is with the Cognitive Development and Neuroimaging Lab, all at Columbia University Medical Center and New York State Psychiatric Institute, New York City. Dr. Freidl, Dr. Albano, and Dr. Rynn are also with the Columbia University Clinic for Anxiety and Related Disorders, where Dr. Elkins is a postdoctoral fellow.