1. The West Virginia University Health System Morgantown West Virginia USA
2. Medical & H.C. Div., Western Psych. Inst. & Clinic University of Pittsburgh Pittsburgh Pennsylvania USA
3. Schmidt College of Medicine Florida Atlantic University Boca Raton Florida USA
4. Cecil G. Sheps Center for Health Services Research University of North Carolina at Chapel Hill Chapel Hill North Carolina USA
5. University of Pittsburgh, Center for Aging and Population Health Pittsburgh Pennsylvania USA
6. Psychological & Brain Sciences University of Louisville Louisville Kentucky USA