1. Department of Social and Behavioral Sciences, School of Public Health, West Virginia University, Morgantown, WV 26506, USA
2. Department of Health Policy, Management and Leadership, School of Public Health, West Virginia University, Morgantown, WV 26506, USA
3. School of Nursing, West Virginia University, Morgantown, WV 26506, USA
4. Department of Statistics, West Virginia University, Morgantown, WV 26506, USA
5. Department of Behavioral Medicine and Psychiatry, Rockefeller Neurosciences Institute, School of Medicine, West Virginia University, Morgantown, WV 26506, USA
6. School of Nursing, The George Washington University, Washington, DC 20052, USA