Received: 30 July 2020
Accepted: 17 March 2021
First Online: 31 March 2021
: The study was approved by Dubai Scientific Research Ethics Committee (DSREC), Dubai Health Authority (DSREC-02/2019_13), and by Zayed University Research Ethics Committee (ZU18_120_E).
: Not applicable.
: The authors declare to have no conflict of interests.