Ali, Ahmed Nabil
Ali, Hisham Kamal-Eldin
Khalid, Said Abd-El-Hafeez
El-Khouly, Wael Ali
Article History
Received: 20 November 2020
Accepted: 18 December 2020
First Online: 14 January 2021
Compliance with ethical guidelines
:
: A. N. Ali, H.K.‑E. Ali, S.A.‑E.‑H. Khalid, and W.A. El-Khouly declare that they have no competing interests.
: This study was approved by Ain Shams University ethical committee according to the ethical guidelines of the 1975 declaration of Helsinki as revised in 2008. Informed consent was obtained from all individual participants included in the study.