[1] St Louis Univ, Sch Med, Div Geriatr Med, St Louis, MO 63104 USA
[2] UCL, London, England
[3] North East London NHS Fdn Trust, London, England
[4] Univ West Scotland, Hamilton, Scotland
[5] Italian Natl Res Ctr Aging, Ancona, Italy
[6] Kyoto Univ, Grad Sch Med, Dept Human Hlth Sci, Kyoto, Japan
[7] Carl von Ossietzky Univ Oldenburg, Dept Geriatr Med, D-26111 Oldenburg, Germany
[8] Univ Europea Madrid, Hosp Univ Ramon y Cajal, Serv Geriatria, Madrid, Spain
[9] Sichuan Univ, West China Hosp, Dept Geriatr, Chengdu 610064, Sichuan, Peoples R China
[10] Incheon Eun Hye Hosp, Korean Assoc Geriatr Hosp, Inchon, South Korea
[11] Univ Coll Med Sci, Delhi 110095, India
[12] Guru Teg Bahadur Hosp, Delhi 110095, India
[13] Amer Univ Beirut, Dept Internal Med, Beirut, Lebanon
[14] Charles Univ Prague, Fac Humanities, CELLO, NT Qual Long Term Care Project 11325, Prague, Czech Republic
[15] Univ Toronto, Baycrest Med Ctr, Toronto, ON, Canada
[16] Radboud Univ Nijmegen, Med Ctr, Dept Primary & Community Care, NL-6525 ED Nijmegen, Netherlands
[17] CHU Toulouse, Gerontol Clin, INSERM 1027, Toulouse, France
[18] Univ Adelaide, Sch Med, Adelaide Geriatr Training & Res Aged Care Ctr, Adelaide, SA, Australia
[19] Queen Elizabeth Hosp, Adelaide, SA, Australia
[20] Chinese Univ Hong Kong, Hong Kong, Hong Kong, Peoples R China
[21] St Louis Univ, Sch Med, Div Endocrinol, St Louis, MO 63104 USA