Received: 20 December 2020
Accepted: 26 April 2021
First Online: 18 May 2021
: Written informed consent was obtained from all patients or a responsible care giver for those who were not able to give consent; the study protocol conformed to ethical guidelines of the 1975 Declaration of Helsinki, approved by the Internal Medicine Department Research Ethics Committee, Faculty of Medicine, Cairo University, number: I-020417 April 2019.
: Written Consent for publication was obtained from patients or their care givers for patients who are unable to give consent.
: The authors declare any financial and non-financial competing interests.