1. From the Department of Public Health Medicine (H.I.), Major of Social and Environmental Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki-ken, Japan; Epidemiology and Prevention Division (M.K., J.I., S.T.), Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan; National Institute of Health and Nutrition (S.S.), Tokyo, Japan; Department of Public Health (K.O.), University of Ehime, Ehime, Japan; Department of Health Science ...