Received: 29 June 2019
Accepted: 21 October 2019
First Online: 30 December 2019
Ethics approval and consent to participate
: This study was approved by the Research Ethics Committee of the Medical Research Institute, Alexandria University, on 13 August 2019 (reference number of approval: 10rg0008812). All patients included in this study gave written informed consent to participate in this research (all the patients were older than 16 years old).
: All patients included in this research gave written informed consent to publish the data contained within this study.
: The author declares that there are no competing interests.