Funding for this research was provided by:
Universität Duisburg-Essen, University Clinics Essen
Morphoplant Company Bochum Germany
Medical Faculty Mannheim, University of Heidelberg
Text and Data Mining valid from 2018-08-30
Received: 21 February 2018
Accepted: 15 August 2018
First Online: 30 August 2018
: The study was approved by the ethical committee of the Regierungspräsidium Karlsruhe, Abteilung 3 - Landwirtschaft, Ländlicher Raum, Veterinär- und Lebensmittelwesen, Karlsruhe, Germany. The approval has the file number: 35-9185.81/G-27/05.
: Not applicable
: The authors declare that they have no competing interests.
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