[1] Karolinska Inst, Aging Res Ctr, Div Geriatr Epidemiol, Neurotec Dept, S-11382 Stockholm, Sweden
[2] Karolinska Inst, Neurotec Dept, Div Geriatr Med, Stockholm, Sweden
[3] Karolinska Inst, Neurotec Dept, Div Mol Neuropharmacol, Stockholm, Sweden
[4] Johns Hopkins Univ, Sch Med, Dept Neurol, Baltimore, MD 21205 USA
[5] Tohoku Univ, Grad Sch Med, Dept Geriatr & Complementary Med, Sendai, Miyagi 980, Japan
[6] Uppsala Univ, Dept Publ Hlth Geriatr, Uppsala, Sweden
[7] Univ Gothenburg, Sahlgrenska Acad, Dept Clin Neurosci, Gothenburg, Sweden
[8] NYU, Sch Med, Ctr Brain Hlth, New York, NY USA
[9] Univ Calif Davis, Alzheimers Dis Ctr, Dept Neurol, Sacramento, CA 95817 USA
[10] Helsinki Univ Hosp, Dept Clin Neurosci, Helsinki, Finland
[11] Univ Geneva, Sch Med, Dept Geriatr, CH-1211 Geneva 4, Switzerland
[12] Karolinska Inst, Neurotec Dept, Div Expt Geriatr, Stockholm, Sweden
[13] NIA, Neurogenet Lab, NIH, Bethesda, MD 20892 USA
[14] Mayo Clin, Dept Diagnost Radiol, Rochester, MN USA
[15] Mayo Clin, MR Res Lab, Rochester, MN USA
[16] Australian Natl Univ, Mental Hlth Res Ctr, Canberra, ACT, Australia
[17] INSERM, Dept Nervous Syst Pathol, Montpellier, France
[18] Erasmus Med Ctr, Dept Epidemiol & Biostat, Rotterdam, Netherlands
[19] Erasmus Med Ctr, Dept Clin Genet, Rotterdam, Netherlands
[20] Univ Maastricht, Dept Psychiat & Neuropsychol, Maastricht, Netherlands
[21] Mayo Clin, Dept Neurol, Rochester, MN USA