Received: 22 March 2021
Accepted: 13 June 2021
First Online: 30 July 2021
: The study protocol was investigated and approved by the Medical Ethics Research Team, Faculty of Medicine, Mansoura University (code number: MS.18. 12.392). Every case, after guaranteeing privacy, has been given verbal consent as most of the patients cannot read or write.
: Not applicable.
: The authors declare that they have no competing interests.