[1] Mayo Clin Jacksonville, Jacksonville, FL 32224 USA
[2] Erasmus Univ, Dept Clin Genet, NL-3000 DR Rotterdam, Netherlands
[3] Univ Hosp Dijkzigt, Dept Neurol, NL-3015 GD Rotterdam, Netherlands
[4] Vrije Univ Amsterdam, Acad Hosp, Dept Human Genet, Amsterdam, Netherlands
[5] Erasmus Univ, Dept Epidemiol & Biostat, NL-3000 DR Rotterdam, Netherlands
[6] Inst Neurol, Dementia Res Grp, London WC2, England
[7] Inst Neurol, Neurogenet Lab, London WC2, England
[8] Mayo Clin, Dept Neurol, Rochester, MN USA
[9] Univ Queensland, Dept Biochem, Brisbane, Qld 4072, Australia
[10] Albert Einstein Sch Med, Dept Pathol, Bronx, NY 10461 USA
[11] Princess Alexandra Hosp, Dept Psychiat, Woolloongabba, Qld 4102, Australia
[12] Univ Manchester, Dept Pathol, Manchester M13 9PT, Lancs, England
[13] Univ Manchester, Div Neurosci, Manchester M13 9PT, Lancs, England
[14] Mater Misericordiae Hosp, Dublin 7, Ireland
[15] Oregon Hlth Sci Univ, Dept Med Genet, Portland, OR 97201 USA
[16] Vet Affairs Med Ctr, Seattle, WA 98108 USA
[17] Washington Univ, Dept Psychiat & Neurol, St Louis, MO 63110 USA