Ketabi, Ali-Reza
Ketabi, Sandra
Nabli, Mohamed Badis
Lauer, Hans-Christoph
Brenner, Martin http://orcid.org/0000-0002-6669-8590
Article History
Received: 24 July 2018
Accepted: 7 February 2019
First Online: 22 February 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Ethical approval of this study was sought and granted by the Medical Council of Baden-Württemberg, Germany (registration no. F-2014-006-z). All procedures performed in this study involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: For this type of study formal consent is not required.