Received: 21 June 2021
Accepted: 5 September 2021
First Online: 23 September 2021
: The study was approved by the Ethics Committee of the High Institute of Public Health (HIPH) for conducting the research and the administrative approval of Alexandria Main University Hospital (AMUH). The researchers complied with the International Guidelines for Research Ethics. A written approval from patients admitted to AMUH after explanation of the purpose and benefits of the research.
: Not applicable.
: All authors declare that they have no conflict of interest.