Wrzosek, Małgorzata http://orcid.org/0000-0002-9820-3871
Wiśniewska, Klaudia
Sawicka, Ada
Tałałaj, Marek
Nowicka, Grażyna
Funding for this research was provided by:
Warszawski Uniwersytet Medyczny (FW113/NM2/13, FW113/NM1/17/17, FW113/PM2/17)
Medical Centre of Postgraduate Education (501-3-40-10-16)
Article History
First Online: 18 July 2018
Compliance with Ethical Standards
: The whole study protocol and the consent procedure were approved by the Institutional Bioethics Committees (KB/127/2012 and KB/67/2017 at the Medical University of Warsaw; and 7/PB/2015 at the Medical Centre of Postgraduate Education).
: The authors declare that they have no competing interests.