1. Department of Medicine, and Cardiovascular Research Institute of Vermont, University of Vermont, Burlington, VT, USA
2. Department of Pathology, and Cardiovascular Research Institute of Vermont, University of Vermont, Burlington, VT, USA
3. Department of Biometry, and Cardiovascular Research Institute of Vermont, University of Vermont, Burlington, VT, USA
4. Department of Epidemiology & Biostatistics, Drexel University, Philadelphia, PA, USA
5. Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN, USA
6. Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, USA
7. Department of Health Science, Brigham Young University, Provo, UT, USA
8. Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA