1. Center for Behavioral Cardiovascular Health, Department of Medicine, Columbia University Irving Medical Center, New York, New York
2. School of Kinesiology, University of Michigan, Ann Arbor, Michigan
3. Department of Biostatistics, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama
4. Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama
5. Exercise Science and Health Promotion Program, College of Health Solutions, Arizona State University, Phoenix, Arizona