[1] Univ Bedfordshire, IDOP, Luton LU2 8LE, Beds, England
[2] St Louis Univ, Sch Med, Div Geriatr Med, St Louis, MO 63104 USA
[3] Hosp Univ Getafe, Dept Geriatr, IAGG, Getafe, Spain
[4] Univ Naples 2, Dept Geriatr Med & Metab Dis, Naples, Italy
[5] Cardiff Univ, Sch Med, Cochrane Inst Primary Care & Publ Hlth, Cardiff, Wales
[6] Agaples Bethesda Hosp, Dept Internal Med & Geriatr, Stuttgart, Germany
[7] Univ Hosp Geneva, Dept Geriatr, Geneva, Switzerland
[8] Chinese Univ Hong Kong, Dept Med & Therapeut, Hong Kong, Hong Kong, Peoples R China
[9] Univ Adelaide, Fac Hlth Sci, Discipline Med, Adelaide, SA 5005, Australia
[10] Geelong Hosp, Deakin Univ & Barwon Hlth, Geelong, Vic, Australia
[11] Univ British Columbia, Dept Med, Vancouver, BC, Canada
[12] Serv Salud Hidalgo, Ctr Invest, Pachuca Hidalgo, Mexico
[13] Inst Nacl Salud, Inst Nacl Geriatria, Mexico City, DF, Mexico
[14] Tel Aviv Univ, Sheba Med Ctr, Gertner Inst Epidemiol, Inst Endocrinol, Tel Aviv, Israel
[15] Univ Bedfordshire, IDOP, Univ Warwick, Warwick Med Sch, Warwick, England
[16] Univ Vienna, Rudolfstiftung Hosp, Vienna, Austria
[17] Stanford Univ, Dept Med, Patient Educ Res Ctr, Sch Med, Stanford, CA 94305 USA