Sprave, Tanja
Verma, Vivek
Förster, Robert
Schlampp, Ingmar
Bruckner, Thomas
Bostel, Tilman
Welte, Stefan Ezechiel
Tonndorf-Martini, Eric
El Shafie, Rami
Nicolay, Nils Henrik
Debus, Jürgen
Rief, Harald http://orcid.org/0000-0003-3610-973X
Article History
Received: 14 December 2017
Accepted: 23 June 2018
First Online: 5 July 2018
Compliance with ethical guidelines
:
: T. Sprave, V. Verma, R. Förster, I. Schlampp, T. Bruckner, T. Bostel, S.E. Welte, E. Tonndorf-Martini, R. El Shafie, N.H. Nicolay, J. Debus and H. Rief declare that they have no competing interests. The sponsors of the study had no role in study design, data analysis, data interpretation, and wording of the report.
: The study was approved by the Heidelberg Independent Ethics Committee (Nr. S‑238/2016).