Received: 19 June 2019
Accepted: 10 March 2020
First Online: 11 May 2020
Ethics approval and consent to participate
: The study was approved by the ethics committee of the Ludwig Maximilian University, in Munich, Germany, under the reference number 350–14, and written informed consent was obtained from all participants after participants have read the information material. Protocol modifications (amendments) are reported to the ethics committee of the Ludwig Maximilian University prior to implementation. Biosamples are integrated into the Max Planck Biobank, which has been approved from the same ethics committee, under the reference number 338–15.
: Not applicable.
: The authors declare that they have no competing interests.