[1] The George Washington University,Milken Institute School of Public Health
[2] University of Minnesota,School of Kinesiology
[3] University of California,Department of Epidemiology and Biostatistics, Helen Diller Family Comprehensive Cancer Center
[4] Cancer Prevention Institute of California,Department of Oncology, Cancer Prevention and Control Program of Lombardi Comprehensive Cancer Center
[5] Georgetown University Medical Center,Department of Epidemiology and Biostatistics
[6] University of California,College of Nursing
[7] The Ohio State University,undefined