Zeman, Marcin
Skałba, Władysław
Wilk, Agata Małgorzata
Cortez, Alexander Jorge
Maciejewski, Adam
Czarniecka, Agnieszka
Article History
Received: 17 October 2021
Accepted: 20 July 2022
First Online: 25 July 2022
Declarations
:
: This retrospective study was conducted in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki Declaration and its later amendments. The study was approved by the institutional Bioethics Committee of the National Research Institute of Oncology Gliwice Branch (KB/430–53/19). Due to the retrospective design of the study, the Bioethics Committee of the National Research Institute of Oncology Gliwice Branch confirmed that informed consent was not necessary from participants (KB/430–53/19). The data used in this study were anonymized before its use.
: Not applicable.
: The authors declare that they have no competing interests.