Mulugeta, Blein
Seyoum, Girma
Mekonnen, Abebe
Ketema, Elbet
Article History
Received: 26 April 2021
Accepted: 6 March 2022
First Online: 18 March 2022
Declarations
:
: Ethical approval was obtained from the institutional review board of the college of health science of Addis Ababa University. Informed consent letters were signed and obtained from each participant’s parents and legal guardians. All methods were performed in accordance with the relevant guidelines and regulations of the Declaration of Helsinki.
: Consent for publication was obtained from each participant.
: The authors declare that they have no competing interests.