Zawadzka, Ewa https://orcid.org/0000-0002-0909-8943
Domańska, Łucja
Article History
Received: 23 October 2017
Accepted: 9 January 2018
First Online: 17 January 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: 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.
: All human data included in this manuscript were obtained in compliance with regulations of our institutions, and human research was completed in accordance with the guidelines of the 1964 Helsinki Declaration and its later amendments.
: Informed consent was obtained from all participants included in the study.