Received: 16 November 2020
Accepted: 5 April 2021
First Online: 15 April 2021
: Declared in the “Methods” section: Ethical approval had been obtained from Medical Research Ethics Committee of Faculty of Medicine, Mansoura University (code no.: MD/138). Approval from Egyptian Ministry of Health was taken (no.: 1-2016/18). Patients signed their written consents after detailed explanation of the study protocol.
: Not applicable.
: The authors declare that they have no competing interests.