Funding for this research was provided by:
Narodowe Centrum Nauki (2014/12/S/NZ8/00722)
Article History
Received: 24 June 2016
Revised: 27 September 2017
Accepted: 3 October 2017
First Online: 25 October 2017
Compliance with Ethical Standards
:
: All authors declare 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.