Received: 26 March 2021
Accepted: 27 January 2022
First Online: 11 February 2022
: The study approved by Institutional Review Board (IRB) of Bahir Dar University, College of Medicine and Health Sciences (protocol number: 089/18–04). Verbal informed consent to participate in the study was obtained from participants, and their parent or legal guardian for those participants age under 18. Verbal informed consent is acceptable and approved by the IRB of Bahir Dar University, and that this study was conducted in accordance with the Declaration of Helsinki. All methods were performed in accordance with the relevant guidelines and regulations of the journal.
: Not applicable.
: The authors declare that they have no competing interests.