Received: 31 March 2020
Accepted: 27 August 2020
First Online: 10 September 2020
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of Alexandria University. reference number of approval: IORG0008812. All patients’ relatives included in this study gave written informed consent to participate in this research (all the patients were older than 16 years old).
: All patients’ relatives included in this research gave written informed consent to publish the data contained within this study.
: The authors of this manuscript declare no relationships with any companies, whose products or services may be related to the subject matter of the article.