Text and Data Mining valid from 2019-08-31
Received: 15 April 2019
Accepted: 16 August 2019
First Online: 31 August 2019
Ethics approval and consent to participate
: The Human Investigation Review Board of the Ruprecht-Karls University Heidelberg approved the study (S-428/2009).
: Not applicable
: BT and RJK are shareholders of Reprognostics GbR. KV, RT, BB, HH, TS and VD declare no conflict of interest.