1. Department of Health and Physical Activity; Physical Activity and Weight Management Research Center, University of Pittsburgh; Pennsylvania USA
2. Department of Epidemiology; Graduate School of Public Health, University of Pittsburgh; Pennsylvania USA
3. Department of Biostatistics; Graduate School of Public Health, University of Pittsburgh; Pennsylvania USA
4. Department of Psychiatry; School of Medicine, University of Pittsburgh; Pennsylvania USA
5. Department of Nutrition and Exercise Science; Bastyr University; Kenmore Washington USA