Idris, Almutaz M.
Crutzen, Rik
Van den Borne, H. W.
Article History
Received: 31 July 2020
Accepted: 15 December 2020
First Online: 7 January 2021
Ethics approval and consent to participate
: The ethical approval for this study was acquired from the Kassala State Ministry of Health Research and Ethics Committee. Before the study, a written and verbal consent were obtained from educated and uneducated (illiterate) participants, respectively.
: Not applicable.
: No competing interest is declared.