Article History
Accepted: 30 March 2021
First Online: 8 April 2021
Declarations
:
: The authors declare that they have no competing interests.
: The study was conducted in accordance with the Declaration of Helsinki.
: A written informed consent was obtained from each participant in this study or from one of his family members and the study was approved by local ethical committee in Faculty of medicine, Beni-Suef University.