Nada, Adel M.
Abdelwahab, Hala
Nabil, Hala
Mohsen, Reham A.
Article History
Received: 11 October 2019
Accepted: 10 February 2020
First Online: 3 April 2020
Ethics approval and consent to participate
: The study was approved by the medical ethical review committee of Cairo University on December 14, 2014, with registration number no: OG-5-14-12-2014. The purpose of this study was clearly explained in the Arabic language to all subjects before their enrollment to the study, and an informed consent form was signed by and obtained from all of those enrolled.
: Not applicable
: The authors declare that they have no competing interests.