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Authors
Wrzosek, Małgorzata http://orcid.org/0000-0002-9820-3871
Wojnar, Marcin
Sawicka, Ada
Tałałaj, Marek
Nowicka, Grażyna
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Funding
Funding for this research was provided by:
Warszawski Uniwersytet Medyczny ((FW113/NM1/17, FW113/NM2/13, FW113/NM1/14, FW113/PM32/14))
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Article History
Received: 12 September 2017
Accepted: 11 May 2018
First Online: 29 May 2018
Ethics approval and consent to participate
: This study was approved by the Institutional Bioethics Committees (KB/127/2012 and KB/67/2017 at the Medical University of Warsaw; 7/PB/2015 at the Medical Centre of Postgraduate Education). Before data collection, study objectives were explained to patients and their written informed consent was obtained.
: The authors declare they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
