Text and Data Mining valid from 2019-01-17
Received: 1 June 2018
Accepted: 4 January 2019
First Online: 17 January 2019
Compliance with ethical standards
: Margit Fisch and Roland Dahlem has served as consultant for Boston Scientific. All other authors declare they have no conflict of interest.
: All procedures performed in our studies involving human participants were in accordance with the ethical standards of the institutional and national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.