Schuster, Alexander K.
Nickels, S.
Pfeiffer, N.
Schmidtmann, I.
Wild, P. S.
Münzel, T.
Beutel, M. E.
Lackner, K. J.
Vossmerbaeumer, U.
Funding for this research was provided by:
Universitätsmedizin der Johannes Gutenberg-Universität Mainz
Article History
Received: 2 February 2020
Revised: 21 April 2020
Accepted: 25 May 2020
First Online: 8 June 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study protocol and study documents were approved by the local ethics committee of the Medical Chamber of Rhineland-Palatinate, Germany (reference no. 837.020.07; original vote: 22.3.2007, latest update: 20.10.2015). According to the tenets of the Declaration of Helsinki, written informed consent was obtained from all participants prior to entering the study.