Received: 5 August 2020
Accepted: 6 December 2020
First Online: 8 March 2021
Ethics approval and consent to participate
: The study was approved by the research committee of Faculty of Medicine, Kasr Alainy Hospital, Cairo University, 2017. No reference number provided as the committee just say yes or no according to the system in our faculty of medicine at 2017 (date of starting of this research). All patients included in this study gave written informed consent to participate in this research. If the patients were disoriented about the setting at the time of the study, written informed consent for their participation was given by their legal guardian.
: All patients included in this research were fully conscious and gave written informed consent to publish the data contained within this study.
: The authors declare that they have no competing interests.