Funding for this research was provided by:
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (310030_179477 / 1)
Received: 4 August 2020
Accepted: 27 December 2020
First Online: 10 January 2021
Ethics approval and consent to participate
: Ethics approval was received from the Zürich university hospital ethics committee, Switzerland (Nr. 2015–00185). Donors provided written consent to tissue testing and data publication. Samples were coded to protect donors’ rights to confidentiality and privacy.
: Not applicable.
: The author declares that he has no competing interests.