| Affiliation: | 1. Department of Biostatistics & Epidemiology, School of Public Health and Health Sciences, University of Massachusetts, 408 Arnold House, 715 North Pleasant Street, Amherst, MA 01003-9304, USA;2. Department of Kinesiology and Sport Management, Texas Tech University, Box 43011, Lubbock, TX 79409, USA;3. Department of Epidemiology, Human Genetics and Environmental Sciences, The University of Texas Health Science Center School of Public Health – Austin Campus, 1616 Guadalupe St., Suite 6.300, Austin, TX 78701, USA;4. Department of Epidemiology, University of Pittsburgh, Graduate School of Public Health, 515 Parran Hall, 130 Desoto Street, Pittsburgh, PA, USA;5. Department of Biostatistics & Epidemiology, School of Public Health and Health Sciences, University of Massachusetts, 401 Arnold House, 715 North Pleasant Street, Amherst, MA 01003-9304, USA |
