[1] Oliba, Rome, Italy
[2] Univ Cattolica Sacro Cuore, Rome, Italy
[3] HEC, 1 Rue Liberat Jouy Josas, Paris, France
[4] Karolinska Univ Hosp, Karolinska Inst, Ctr Alzheimer Res, Div Clin Geriatr,Dept NVS,Theme Aging, Stockholm, Sweden
[5] Univ Eastern Finland, Inst Publ Hlth & Clin Nutr, Kuopio, Finland
[6] Imperial Coll London, Sch Publ Hlth, Ageing & Epidemiol AGE Res Unit, London, England
[7] Ist Super Sanita, Dept Cardiovasc Endocrine Metab Dis & Aging, Rome, Italy
[8] CNR, Neurosci Inst, Aging Branch, Padua, Italy
[9] Med Univ Geneva, Dept Geriatr & Rehabil, Geneva, Switzerland
[10] Upjohn, Pfizer GEP SLU, Madrid, Spain
[11] Upjohn Hellas Ltd, Div Pfizer, Med Affairs, Athens, Greece
[12] Upjohn, Div Pfizer, Surrey, England