Hetzer, Stefan http://orcid.org/0000-0002-1773-1518
Hirsch, Sebastian
Braun, Jürgen
Sack, Ingolf
Weygandt, Martin
Article History
First Online: 5 September 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study was approved by the ethical review board of the Charité – Universitätsmedizin Berlin in conformity with the Declaration of Helsinki. All procedures performed in this study were in accordance with existing ethical standards. All authors have been personally and actively involved in substantial work leading to the manuscript.
: Informed consent was obtained from all individual participants included in the study.