Article History
Received: 20 August 2019
Accepted: 22 October 2019
First Online: 21 November 2019
Ethics approval and consent to participate
: The study was approved by the Research Ethics Committee (Faculty of Medicine, Ain Shams University, FWA 00006444), and all patients signed an informed consent for participation in the study in accordance with the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.