Lewandowska, Agnieszka
Szubert, Sebastian
Koper, Krzysztof
Koper, Agnieszka
Cwynar, Grzegorz
Wicherek, Lukasz http://orcid.org/0000-0002-8575-0251
Article History
Received: 9 June 2020
Accepted: 11 August 2020
First Online: 2 September 2020
Ethics approval and consent to participate
: This retrospective chart review study involving human participants was 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. This study received the Center of Postgraduate Medical Education Ethical Committee approval (7/PB/2020).
: Not applicable
: AL, SSz, KK, AK, GC, and LW have no conflicts of interest or financial ties to disclose.