[1] Cleveland Clin, Mellen MS Ctr, Dept Neurol, Cleveland, OH 44106 USA
[2] Novartis Pharma AG, Basel, Switzerland
[3] Univ Oxford, Big Data Inst, Nuffield Dept Populat Hlth, Li Ka Shing Ctr Hlth Informat & Discovery, Oxford, England
[4] Univ Oxford, Dept Stat, Oxford, England
[5] Univ Hosp Munster, Dept Neurol, Munster, Germany
[6] Univ Sydney, Brain & Mind Inst, Sydney, NSW, Australia
[7] McGill Univ, Montreal Neurol Inst & Hosp, Brain Imaging Ctr, Montreal, PQ, Canada