Received: 17 December 2021
Accepted: 18 April 2022
First Online: 30 May 2022
: All methods were performed in accordance with the relevant guidelines and regulations. Ethical clearance was obtained from the Institutional Review Board (IRB) of the University of Gondar, College of Medicine and Health Science, Institute of Public Health. The reference number for the ethical clearance for this paper was IPH/1484/2013. Supportive letters were obtained from the local focal person of Metu district. Each study participant was informed about the purpose, method, expected benefit, and risk of the study. They were also informed about their full right to not participate in or withdraw from the study at any time. Written informed consent was obtained from each study participant.
: Not applicable.
: The author declares that they have no competing interests.