Funding for this research was provided by:
the national institutes of health, fogarty international center (2D43TW007296)
Accepted: 8 September 2021
First Online: 20 September 2021
: The Institutional Review Boards of Ain Shams University and the University of Maryland, Baltimore, approved the protocol before study initiation. All collected data were anonymous and kept confidential.
: Not applicable.
: The authors declare that they have no competing interests.