Funding for this research was provided by:
Albert-Ludwigs-Universität Freiburg (Deutsche Forschungsgemeinschaft SI-1281/5-1 (CS))
University of Medicine and Pharmacy ''Iuliu Hatieganu'', Cluj-Napoca, Romania (4945/6/08.03.2016 (SD))
Received: 25 August 2017
Accepted: 26 June 2018
First Online: 6 July 2018
Ethics approval and consent to participate
: The study was approved by the local Ethic Committee from the University of Medicine and Pharmacy “Iuliu Hatieganu” from Cluj-Napoca, Romania and performed in accordance with the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.
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