Received: 17 October 2020
Accepted: 22 February 2021
First Online: 1 March 2021
: Ethical clearance was obtained from the Ethical Review Committee of the College of Medicine and Health Sciences, University of Gondar. Permission letters were obtained from the SNNPR Health Bureau and the administrations of each hospital. After a brief explanation about the objectives of the study for the participants, written informed consent was obtained from study participants. Furthermore, confidentiality was kept carefully by using codes instead of any personal identifiers, and privacy was maintained given that the standard medical examination/practice has been done. We confirm that all methods were performed in accordance with the relevant guidelines and regulations.
: Not applicable.
: The authors declare that they have no competing interests.