Text and Data Mining valid from 2019-11-02
Received: 2 August 2019
Accepted: 4 October 2019
First Online: 2 November 2019
Compliance with ethical guidelines
: B. Besteher, H.-Y. Chung, T.E. Mayer, O.W. Witte, K. Kirchhof and M. Schwab declare that they have no competing interests.
: All procedures performed involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1975 Helsinki declaration and its later amendments or comparable ethical standards. Informed consent was obtained from the patient included in this report.