Hendlmeier, Ingrid
Bickel, Horst
Heßler-Kaufmann, Johannes Baltasar
Schäufele, Martina
Article History
Received: 10 July 2019
Accepted: 11 September 2019
First Online: 18 October 2019
Compliance with ethical guidelines
:
: I. Hendlmeier, H. Bickel, J.B. Heßler-Kaufmann and M. Schäufele declare that they have no competing interests.
: All procedures performed in studies involving human participants or on human tissue 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 all individual participants included in the study. This study was approved by the ethics committee of the Faculty of Medicine of the Technical University of Munich (No. 66/14). The supplement containing this article is not sponsored by industry.