Received: 18 June 2021
Accepted: 5 September 2021
First Online: 20 September 2021
: The project was evaluated by the Ethics Committee of the German University in Cairo (Committee reference number not applicable) with regard participation of human patients or animals and/or clinical samples obtained from humans or animals, and with the respect of anonymity guaranteed to patients from whom any samples are being obtained. Written informed consent was obtained from each participant in the study that abided by the Helsinki declaration.
: Not applicable. No data that compromise anonymity is presented.
: The authors have declared no conflict of interest.