Kalbarczyk, Małgorzata http://orcid.org/0000-0002-9431-1947
Mackiewicz-Łyziak, Joanna http://orcid.org/0000-0002-4545-8221
Funding for this research was provided by:
Narodowe Centrum Nauki (2016/21/D/HS4/00691)
Article History
First Online: 28 March 2019
Compliance with Ethical Standards
:
: This study was funded by the National Science Centre Poland [UMO-2016/21/D/HS4/00691].
: Małgorzata Kalbarczyk and Joanna Mackiewicz-Łyziak have no conflicts of interest that are directly relevant to the content of this article.
: The datasets analysed during the current study are not publicly available because of restrictions imposed by the provider of the data (European Commission) but are available from the authors upon reasonable request and with permission of the European Commission.