[1] Natl Yang Ming Univ, Aging & Hlth Res Ctr, Taipei, Taiwan
[2] Taipei Vet Gen Hosp, Ctr Geriatr & Gerontol, 201,Sec 2,Shih Pai Rd, Taipei 11217, Taiwan
[3] Chinese Univ Hong Kong, Fac Med, Dept Med & Therapeut, Hong Kong, Peoples R China
[4] Mahidol Univ, Siriraj Hosp, Dept Prevent & Social Med, Div Geriatr Med,Fac Med, Bangkok, Thailand
[5] Chinese Univ Hong Kong, SH Ho Ctr Gerontol & Geriatr, Hong Kong, Peoples R China
[6] Kaohsiung Vet Gen Hosp, Ctr Geriatr & Gerontol, Kaohsiung, Taiwan
[7] Univ Tokyo, Inst Gerontol, Tokyo, Japan
[8] Seoul Natl Univ, Coll Med, Dept Internal Med, Bundang Hosp, Seongnam, South Korea
[9] Peking Union Med Coll Hosp, Dept Geriatr, Beijing, Peoples R China
[10] Kyung Hee Univ, Coll Med, East West Med Res Inst, Dept Biomed Sci & Technol, Seoul, South Korea
[11] Kyung Hee Univ, Coll Med, Dept Family Med, Seoul, South Korea
[12] Univ Tokyo, Grad Sch Med, Dept Geriatr Med, Tokyo, Japan
[13] Nagoya Univ, Dept Community Healthcare & Geriatr, Grad Sch Med, Nagoya, Aichi, Japan
[14] Seoul Natl Univ, Coll Med, Dept Rehabil Med, Bundang Hosp, Seongnam, South Korea
[15] Seoul Natl Univ, Dept Rehabil Med, Boramae Med Ctr, Seoul, South Korea
[16] Taipei Vet Gen Hosp, Dept Family Med, Yuanshan Branch, Yilan, Taiwan
[17] Ajou Univ, Dept Prevent Med & Publ Hlth, Sch Med, Suwon, South Korea
[18] Tan Tock Seng Hosp, Inst Geriatr & Act Aging, Singapore, Singapore
[19] Osaka Univ, Dept Geriatr Med, Grad Sch Med, Osaka, Japan
[20] Univ Tsukuba, Grad Sch Comprehens Human Sci, Tokyo, Japan
[21] Minist Hlth, Beijing Inst Geriatr, Beijing Hosp, Beijing, Peoples R China
[22] Natl Ctr Geriatr & Gerontol, 7-430 Morioka Cho, Obu, Aichi 4740038, Japan