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SP was supported by the US National Institutes of Health R01NS131606 and R01NS129760. BK was supported by a PhD fellowship basic research grant from the Foundation for Scientific Research Flanders (FWO 1S12525N). MV was supported by a grant (Grant No. VE 1274\/1-1) from the German Research Foundation (Deutsche Forschungsgemeinschaft, DFG). GM was supported by a senior clinical researcher grant (1843123N) from the Research Foundation Flanders (FWO).","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflicts of interest"}},{"value":"This study complied with the declaration of Helsinki and was approved by the local ethics committees: Lyon institutional review board: Comit\u00e9 de Protection des Personnes Sud-Est IV, ref12-135, \u201cBioth\u00e8que du service de neurobiologie du centre de Biologie Pathologie Est des Hospices Civils de Lyon\u201d, approved 09\/06\/2012. Brussels institutional review board: Erasme Hospital Ethics committee: P2021\/589. Innsbruck institutional review board: Innsbruck University Hospital Ethics Committee: AM4091-292\/4.6. Aachen institutional review board: Medical Faculty of RWTH Aachen University Ethics Committee (EK 14\/062 and EK 22\/378). Columbia University Institutional Review Board (IRB) Protocol # AAAL4106.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical approval"}}]}}