[1] Teikyo Univ, Sch Med, Hyg & Publ Hlth, Tokyo, Japan
[2] Osaka Univ, Grad Sch Med, Geriatr & Gen Med, Suita, Osaka, Japan
[3] Miyakawa Clin, Internal Med & Pediat, Tsukuba, Ibaraki, Japan
[4] Yokohama Sotetsu Bldg Clin, Internal Med, Yokohama, Kanagawa, Japan
[5] Katsuya Clin, Internal Med, Tokyo, Japan
[6] Univ Ryukyus Hosp, Clin Res Support Ctr, Nishihara, Okinawa, Japan
[7] Univ Ryukyus, Clin Pharmacol & Therapeut, Nishihara, Okinawa, Japan
[8] Univ Ryukyus, Cardiovasc Med, Nephrol & Neurol, Nishihara, Okinawa, Japan
[9] Steel Mem Yawata Hosp, Cardiol & Hypertens, Kitakyushu, Fukuoka, Japan
[10] Jichi Med Univ, Dept Med, Div Cardiovasc Med, Sch Med, Shimotsuke, Tochigi, Japan
[11] Shiga Univ Med Sci, Publ Hlth, Otsu, Shiga, Japan
[12] Asahikawa Med Univ, Dept Internal Med, Div Cardiol Nephrol Pulmonol & Neurol, Asahikawa, Hokkaido, Japan
[13] Tohoku Univ Hosp, Dept Med, Div Nephrol Endocrinol & Vasc Med, Sendai, Miyagi, Japan
[14] Yokohama Rosai Hosp, Japan Org Occupat Hlth & Safety, Yokohama, Kanagawa, Japan