Received: 14 October 2020
Accepted: 20 January 2021
First Online: 8 February 2021
Ethics approval and consent to participate
: The current study was conducted after obtaining the approval from research ethics committee, Faculty of Medicine, Tanta University, Egypt (reference# 34152). Informed written consent was obtained from involved participants in the study.
: Not applicable.
: The authors declare that they have no competing interests.