Institution: | 1. Department of Epidemiology and Biostatistics, School of Public Health, Indiana University Bloomington, 1025 E. 7th street, Bloomington, Indiana, 47405, U.S.A.;2. Department of Epidemiology and Biostatistics, College of Public Health, University of Georgia, Athens, Georgia 30602, U.S.A.;3. Department of Biostatistics, College of Public Health & Health Professions and College of Medicine, University of Florida, Gainesville, Florida 32611, U.S.A. |