Article History
Received: 18 November 2020
Accepted: 12 April 2021
First Online: 21 April 2021
Declarations
:
: The study was conducted after ethical approval was obtained from Ethical review committee of school of Biomedical and Laboratory science, college of medicine and health sciences, university of Gondar. The study was conducted after written consent and/or assent of study participants and/or their guardians was obtained.
: All the authors have reviewed the manuscript and agreed to submit.
: All authors have agreed no any conflict of interest.