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Authors
Ganczak, Maria https://orcid.org/0000-0002-6424-128X
Pasek, Oskar
Duda – Duma, Łukasz
Świstara, Dawid
Korzeń, Marcin
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Article History
Received: 17 July 2020
Accepted: 9 February 2021
First Online: 23 February 2021
Ethics approval and consent to participate
: In Poland there is no requirement for ethics committee (Institutional Review Board; IRB) approval for observational studies similar to ours []. The study was designed and conducted in accordance with these regulations and regulations established by the IRB of the University of Zielona Gora (Komisja Bioetyczna CM UZ) [] and the 1964 Helsinki declaration [].The need for participant informed consent regarding observational covert studies is deemed unnecessary according to Polish national regulations []; covert research does not allow for the participants to give informed consent [, ].
: Not applicable.
: The authors declare that they have no competing interests.
