1. Department of Psychiatry and Human Behavior, Warren Alpert Medical School at Brown University, Providence, RI, USA;
2. Behavioral Medicine and Addictions Research Group, Butler Hospital, Providence, RI, USA;
3. Department of Psychology, Salem Virginia Veterans Affairs Medical Center, Salem, VA, USA;
4. Department of Psychiatric Medicine, University of Virginia, Charlottesville, VA, USA;
5. Department of Psychiatry and Behavioral Medicine, Virginia Tech Carilion School of Medicine, Roanoke, USA