Received: 23 November 2019
Accepted: 17 March 2020
First Online: 27 March 2020
Ethics approval and consent to participate
: This study was approved by the ethical committee of Ain Shams University on June 2018 (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.
: All patients included in this research gave written informed consent to publish the data contained within this study.
: The author declares that she has no competing interests.