1. Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA;
2. Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA;
3. Department of Health and Physical Activity, University of Pittsburgh, Pittsburgh, PA;
4. Department of Psychology, University of Pittsburgh, Pittsburgh, PA;
5. Department of Psychology, Ohio State University, Columbus, OH;
6. Department of Biostatistics, University of Pittsburgh School of Public Health, Pittsburgh, PA