[1] Univ Hosp 12 Octubre, Dept Neurol, Madrid, Spain
[2] Ctr Invest Biomed Red Enfermedades Neurodegenerat, Madrid, Spain
[3] Univ Complutense, Fac Med, Dept Med, E-28040 Madrid, Spain
[4] Columbia Univ, Coll Phys & Surg, GH Sergievsky Ctr, New York, NY USA
[5] Columbia Univ, Dept Neurol, Coll Phys & Surg, New York, NY USA
[6] Columbia Univ, Taub Inst Res Alzheimers Dis & Aging Brain, Coll Phys & Surg, New York, NY USA
[7] Columbia Univ, Dept Epidemiol, Mailman Sch Publ Hlth, New York, NY USA
[8] Leicestershire Partnership Trust, Dept Liaison Psychiat, Leicester, Leics, England
[9] Univ Leicester, Leicester, Leics, England