Funding for this research was provided by:
Bundesministerium für Bildung und Forschung (grant No.01GI1010C)
Deutsches Zentrum für Neurodegenerative Erkrankungen (arroyo572)
Helmholtz-Alberta Initiative (HAI SO-083)
Helmholtz-Alberta Initiative-Neurodegenerative disease research (grant No. 1.4.2014-30.4.2015.)
Received: 5 April 2020
Accepted: 2 January 2021
First Online: 22 February 2021
Ethics approval and consent to participate
: Patient material was obtained after the approval of local ethics committee of the University Medical Center, Göttingen; and according to the legislation of the Spanish authorities (Ley de la Investigación Biomédica 2013 and Real DecretoBiobancos, 2014).
: Not applicable.
: The authors declare that they have no competing interests.