Received: 4 March 2022
Accepted: 24 June 2022
First Online: 19 July 2022
: Institutional (Ain Shams University, Maadi Armed Forces hospital and Aswan Cancer hospital and Aswan cancer centre) ethical approval was taken before conducting this prospective study; Research ethics committee (REC) in Ain shams university approved the study protocol on 21/7/2019 from the ethical point of view (FWA: 000017585). Verbal consent & ethical permissions were obtained from all subjects after informing each of them about the nature & purpose of the study, ensuring confidentiality was mandatory.
: Not applicable.
: The authors declare they have no competing interests.