Article History
Accepted: 22 July 2022
First Online: 16 August 2022
Declarations
:
: The authors have no conflicts of interest to declare.
: Ethical approval was obtained from the Directorate of Research, MOH, Khartoum State in July 2017. The authors assert that all procedures contributing to this work comply with the ethical standards of the relevant national and institutional committees on human experimentation and with the Helsinki Declaration of 1975, as revised in 2008.
: This was obtained from all individual participants included in the study. All participants were informed that their participation in the study was voluntary and they had the right to withdraw without any consequences. They were also informed that their names, addresses, phone numbers, or universities were not included in the questionnaire to maintain their privacy and confidentiality.