Bayramoğlu, Yener http://orcid.org/0000-0003-2572-0939
Lünenborg, Margreth http://orcid.org/0000-0002-3200-4765
Funding for this research was provided by:
Freie Universität Berlin
Article History
First Online: 27 March 2018
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: Informed consent was obtained from all individual participants included in the study.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.