Affiliation: | 1. Center for Bio-behavioral Research, Sanford Research, Fargo, North Dakota;2. Department of Preventive Medicine, University of Southern California, Los Angeles, California;3. Department of Psychology, Drexel University, Philadelphia, Pennsylvania;4. Center for Bio-behavioral Research, Sanford Research, Fargo, North Dakota Department of Psychiatry and Behavioral Science, University of North Dakota School of Medicine and Health Sciences, Fargo, North Dakota |