Received: 13 July 2019
Accepted: 11 March 2020
First Online: 18 March 2020
Ethics approval and consent to participate
: This study was approved by ethical review committee of university of Gondar and permission was obtained from Mecha woreda health office. Then informed written consent and assent were taken from the study participants.
: Not applicable.
: We, the authors declare that we didn’t have competing interests.