Affiliation: | ∗ Department of Cardiology, Keio University School of Medicine, Tokyo, Japan;† Department of Healthcare Quality Assessment, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan;‡ Department of Cardiology, Hino Municipal Hospital, Tokyo, Japan;§ Department of Cardiology, Saitama Municipal Hospital, Saitama, Japan;‖ Department of Cardiology, Kawasaki Municipal Hospital, Kanagawa, Japan;¶ Department of Cardiology, Saiseikai Utsunomiya Hospital, Tochigi, Japan |