[1] Jichi Med Univ, Div Community & Family Med, Shimotsuke, Tochigi, Japan
[2] Fukushima Med Univ, Dept Gen Internal Med, Fukushima, Japan
[3] Shizuoka Prefectural Gen Hosp, Clin Res Ctr, Shizuoka, Japan
[4] Keio Univ, Sch Med, Dept Endocrinol Metab & Nephrol, Tokyo, Japan
[5] Tohoku Univ, Grad Sch Med, Dept Anesthesiol & Perioperat Med, Sendai, Miyagi, Japan
[6] Kitaibaraki City Hosp, Dept Internal Med, Osaka, Japan
[7] Fukushima Med Univ, Ctr Innovat Res Communities & Clin Excellence CiR, Fukushima, Japan