Funding for this research was provided by:
Boehringer Ingelheim (Not applicable)
Received: 7 October 2019
Accepted: 30 April 2020
First Online: 12 May 2020
Ethics approval and consent to participate
: Collection of tissue was approved by the Medical Ethics Committee of the University Hospital Cologne and all study participants gave written informed consent as part of the Network Genomic Medicine (NGM).
: Not applicable.
: The authors declare that they have no competing interests.