Ehrlich, Stefan K. http://orcid.org/0000-0002-3634-6973
Cheng, Gordon http://orcid.org/0000-0003-0770-8717
Article History
Accepted: 19 October 2018
First Online: 2 November 2018
Compliance with Ethical Standards
:
: The authors declare no conflict of interest nor competing financial interests.
: This work was approved by the ethics commission of the Faculty of Medicine, Technische Universität München (TUM) under the Reference Number 236/15s.
: Consent to participate and publish was obtained from the participants in verbal and written form.
: Data and material was not made publicly available but can be obtained from the corresponding author.