Received: 22 September 2019
Accepted: 8 May 2020
First Online: 19 May 2020
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board of Mekelle University (IRB No.1437/2018). Verbal consent was obtained from the participants. The use of verbal consent was approved by the ethics committee.
: Not applicable.
: We, the authors, declare that we don’t have any competing interests.