[1] Case Western Reserve Univ, Fairhill Ctr, Alzheimer Ctr, Cleveland, OH 44120 USA
[2] Huddinge Hosp, Karolinska Inst, Dept Clin Neurosci & Family Med, Div Geriatr Med, S-14186 Huddinge, Sweden
[3] Janssen Res Fdn, Hlth Econ, Titusville, NJ USA
[4] Univ Calif San Francisco, Ctr Clin Aging Serv Res, San Francisco, CA 94143 USA
[5] Univ New S Wales, Prince Henry Hosp, Dept Psychogeriatr, Sydney, NSW, Australia
[6] Univ British Columbia, Div Neurol, Vancouver, BC V5Z 1M9, Canada
[7] Fdn natl Gerontol, Hop Broca, Paris, France
[8] McGill Univ, Ctr Studies Aging, Montreal, PQ, Canada
[9] Univ So Calif, Dept Pharmaceut Econ & Policy, Los Angeles, CA USA
[10] Lewin TAG, San Francisco, CA USA
[11] Univ Newcastle, Fac Med & Hlth Sci, Callaghan, NSW, Australia
[12] Pfizer Inc, Pfizer Pharmaceut Grp, New York, NY USA
[13] Harvard Univ, Sch Publ Hlth, Dept Hlth Policy & Management, Boston, MA 02115 USA
[14] St Josephs Hosp, Ctr Evaluat Med, Hamilton, ON, Canada
[15] McMaster Univ, Dept Clin Epidemiol & Biostat, Hamilton, ON, Canada
[16] Economists Advisory Grp Ltd, London, England
[17] Columbia Univ, Coll Phys & Surg, Gertrude H Sergievsky Ctr, New York, NY USA
[18] BF Res Inst, Osaka, Japan
[19] Int Longev Ctr USA, New York, NY USA
[20] Karolinska Inst, Dept Geriatr Med, S-10401 Stockholm, Sweden
[21] Karolinska Inst, Div Clin Neurosci & Family Med, S-10401 Stockholm, Sweden
[22] Umea Univ, Dept Family Med, S-90187 Umea, Sweden