Funding for this research was provided by:
European Commission (ENER/2017/NUCL/SI2.759174)
Received: 29 January 2021
Revised: 2 April 2021
Accepted: 29 April 2021
First Online: 15 May 2021
: The scientific guarantor of this publication is Prof. Guy Frija.
: The authors of this manuscript declare no relationships with any companies whose products or services may be related to the subject matter of the article.
: One of the authors has significant statistical expertise.
: Written informed consent was waived by the Institutional Review Boards.
: Institutional Review Board approval was obtained.
: • prospective• cross-sectional study• multicenter study