Text and Data Mining valid from 2019-07-27
Received: 7 June 2019
Accepted: 17 July 2019
First Online: 27 July 2019
Compliance with ethical standards
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all participants.
: The authors declare that they have no conflict of interest.Author Marta Malesza declares that she has no conflict of interest. Author Magdalena Claudia Kaczmarek declares that she has no conflict of interest.