Niesiobędzka, Małgorzata
Kołodziej, Sabina http://orcid.org/0000-0002-7467-1048
Article History
First Online: 13 December 2017
Compliance with Ethical Standards
: All procedures were conducted in accordance with the ethical standards of the institutional and/or national research committees, 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.
: On behalf of all the authors, the corresponding author states that there is no conflict of interest.