Received: 6 July 2019
Accepted: 26 February 2020
First Online: 6 April 2020
Ethics approval and consent to participate
: This study was approved by the ethical committee of Ain Shams University on June 2016 (no reference number was given at that time). All patients included in this study gave written informed consent to participate in this research by the patients themselves or by primary degree relatives.
: Patients included in this research gave written informed consent to publish the data contained within this study.
: The authors declare that they have no competing interests.