[1] Mayo Clin, Dept Neurosci, Mol Genet Lab & Core,Coll Med, Morris K Udall Parkinsons Dis Res Ctr Excellence, Jacksonville, FL 32224 USA
[2] Mayo Clin, Biostat Unit, Coll Med, Jacksonville, FL 32224 USA
[3] St Olavs Hosp, Dept Neurol, Trondheim, Norway
[4] Norwegian Univ Sci & Technol, Dept Neurosci, N-7034 Trondheim, Norway
[5] Royal Victoria Hosp, Dept Neurol, Belfast BT12 6BA, Antrim, North Ireland
[6] Mater Misericordiae Univ Hosp, Dept Neurol, Dublin 7, Ireland
[7] Univ Coll Dublin Conway Neurosci Investigator, Dublin, Ireland
[8] Med Univ Silesia, Dept Neurol, Katowice, Poland
[9] Jagiellonian Univ, Dept Neurol, Coll Med, Krakow, Poland
[10] Polish Acad Sci, Med Res Ctr, Dept Neurodegenerat Disorders, Warsaw, Poland
[11] MSWiA Hosp, Dept Neurol, Warsaw, Poland
[12] Mayo Clin, Dept Neurol, Coll Med, Jacksonville, FL 32224 USA