Kaiser Permanente Center for Health Research, Portland, Oregon, United States
Harvard University Medical School, Boston, Massachusetts, United States
Vanderbilt University, Nashville, Tennessee, United States
Depression Research Unit, University of Pennsylvania, Philadelphia, Pennsylvania, United States
Vanderbilt Adult Outpatient Psychiatry, Nashville, Tennessee, United States
Rush Medical Center - Treatment Research Unit, Chicago, Illinois, United States
University of Michigan, Ann Arbor, Michigan, United States
Cleveland Clinic Foundation, Cleveland, Ohio, United States
Vanderbilt University, Nashville, Tennessee, United States