Article History
Received: 17 February 2020
Accepted: 7 May 2020
First Online: 25 May 2020
Ethics approval and consent to participate
: All subjects provided a written informed consent to participate in the study. The study protocol was approved by the Medical Research Ethics Committee, Sohag Faculty of Medicine, Sohag University. The committee reference number is not applicable. Date of approval 15 July 2015; the Ethical Research Committee, Beni Suef Faculty of Medicine, Beni Suef University. The committee reference number is not applicable. Date of approval 11 August 2015; the Qena Medical Ethics Committee, Qena Faculty of Medicine, South Valley University. The committee reference number is not applicable. Date of approval 17 August 2015.
: Not applicable.
: The authors declare that they have no competing interests.