[1] St Louis Univ, Sch Med, Div Geriatr Med, St Louis, MO 63104 USA
[2] St Louis Univ, Sch Med, Div Endocrinol, St Louis, MO 63104 USA
[3] St Louis Univ, Sch Med, Dept Neurol & Psychiat, St Louis, MO 63104 USA
[4] St Louis Univ, Sch Med, Div Geriatr Med, St Louis, MO 63104 USA
[5] Getafe Univ Hosp, Serv Geriatr, Getafe, Spain
[6] Univ Bedfordshire, Luton, Beds, England