1. Department of Medicine; University of Alabama at Birmingham School of Medicine and Medicine Service, Birmingham Veterans Affairs Medical Center; Birmingham AL USA
2. Program of Addiction Research, Clinical Care, Knowledge, and Advocacy (PARCKA), Division of Epidemiology, Departments of Medicine and Psychiatry; University of Utah School of Medicine and Informatics, Decision-Enhancement, and Analytic Sciences Center, VA Salt Lake City Health Care System; Salt Lake City UT USA