Document is current

Article History

Received: 28 October 2017

Accepted: 26 March 2018

First Online: 6 April 2018

Compliance with ethical standards

:

: No competing interests have been declared by the authors.

: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The study protocol was approved by the institution research ethics committee. Approval by the deans of the chosen faculties was obtained.

: Informed consent was obtained from all individual participants included in the study.