Affiliation: | 1. The Department of Biostatistics, School of Public Health, The University of Tokyo, Tokyo, JapanTakashi Hiromasa and Shoichi Kuramitsu equally contributed to this work.;2. The Department of Cardiology, Kokura Memorial Hospital, Kitakyushu, Japan;3. The Department of Biostatistics, School of Public Health, The University of Tokyo, Tokyo, Japan |