Zant, Ayman
Awwad, Hussain M.
Geisel, Jürgen
Keller, Markus
Obeid, Rima
Article History
Received: 19 November 2018
Accepted: 8 January 2019
First Online: 24 January 2019
Compliance with ethical standards
:
: The authors have no conflicts of interest to declare.
: The study was conducted in accordance with the ethical principles stated in the Declaration of Helsinki. The study protocol was reviewed and approved by the Ethics Committee of the Saarland Region (Approval Number: 244/14).
: All procedures were approved by the review board of the Saarland Medical Committee.
: All participants provided written informed consent to the study.