Funding for this research was provided by:
Ministerstwo Nauki i Szkolnictwa Wyższego (No 024/RID/2018/19)
Received: 2 March 2021
Accepted: 29 June 2021
First Online: 12 July 2021
: The local Bioethics Review Committee, having assessed the study design, judged that ethics approval was not required under presently applicable legislation, nevertheless it endorsed in principle the study protocol <b>(Decision Ref. No. 40/KBL/OIL/2017)</b>. All participants were furnished with detailed information on the aims and methods to be used throughout the study, and gave their written informed consent to participate.
: The Authors represent that Consent for publication statement is not justified by the study protocol, as all source data are provided in an anonymised format.With the kindest regards,Marek ZAK.(Corresponding Author)Marek ZAK, MsPT, PhD, Ass. Professor,The Institute of Health Sciences, <i>Collegium Medicum.</i>The Jan Kochanowski University,ul. Zeromskiego 5, 25–369 Kielce, Poland,E-mail: ExternalRef removedPhone: (+ 48) 41 349 69 09 Fax: (+ 48) 41 349 69 16.
: The Authors report no conflicts of interest in this work.