Funding for this research was provided by:
Narodowe Centrum Nauki (2017/27/B/NZ9/02218)
Article History
Received: 28 February 2018
Revised: 18 June 2018
Accepted: 26 June 2018
First Online: 11 July 2018
Compliance with ethical standards
:
: Not applicable.
: Informed consent was obtained from all individual participants included in the study.
: The authors declare that they have no competing interests.