[1] Univ Barcelona, Inst Neurosci, Fac Med & Hlth Sci, Dept Med, Barcelona, Spain
[2] August Pi i Sunyer Inst Biomed Res IDIBAPS, Barcelona, Spain
[3] Univ Autonoma Barcelona, Inst Guttmann, Inst Univ Neurorehabil adscrit, Badalona, Spain
[4] Univ Autonoma Barcelona, Hosp Sant Pau, Inst Invest Biomed Sant Pau, Dept Neurol,Sant Pau Memory Unit, Barcelona, Spain
[5] Univ Int Catalunya, Sch Med & Hlth Sci, Dept Med, Sant Cugat, Spain
[6] Univ Autonoma Barcelona, Dept Med, Bellaterra, Spain
[7] Fdn Inst Invest Ciencies Salut Germans Trias & Puj, Badalona, Spain
[8] Hosp Clin Barcelona, Ctr Diagnost Imatge, Seccio Neuroradiol, Barcelona, Spain
[9] Univ Catolica Valencia San Vicente Martir, Ctr Invest Traslac San Alberto Magno, Valencia, Spain
[10] Hebrew SeniorLife, Hinda & Arthur Marcus Inst Aging Res, Roslindale, MA USA
[11] Hebrew SeniorLife, Deanna & Sidney Wolk Ctr Memory Hlth, Roslindale, MA USA
[12] Harvard Med Sch, Neurol, Boston, MA USA