Bil-Lula, Iwona http://orcid.org/0000-0002-2769-0166
Woźniak, Mieczysław
Funding for this research was provided by:
This research project was funded by The Polish Ministry of Science and Higher Education (grant number ST-947)
Article History
Received: 27 October 2017
Accepted: 6 February 2018
First Online: 26 March 2018
Compliance with ethical standards
:
: Authors declare no conflict of interest.
: All procedures involving human participants performed in this study 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.
: Informed consent was obtained from all individual participants included in the study.