[1] Osaka Univ, Grad Sch Med, Div Hlth Sci, 1-7 Yamadaoka, Suita, Osaka 5650871, Japan
[2] Univ Calif Berkeley, Sch Publ Hlth, Berkeley, CA USA
[3] Osaka Home Med Care Clin, Osaka, Japan
[4] Nakamura Clin, Osaka, Japan
[5] Hirotani Clin, Osaka, Japan
[6] Fukuda Clin, Osaka, Japan
[7] Tamatani Clin, Osaka, Japan
[8] Okuda Clin, Osaka, Japan
[9] Ikushima Clin, Osaka, Japan
[10] Baba Clin, Osaka, Japan
[11] Nagano Clin, Nagano, Japan
[12] Yukokai Nakamura Clin, Osaka, Japan
[13] Osaka Univ, Grad Sch Med, Dept Geriatr & Gen Med, Osaka, Japan
[14] Osaka Rosai Hosp, Japan Org Occupat Hlth & Safety, Osaka, Japan