Received: 18 April 2019
Accepted: 9 July 2019
First Online: 12 July 2019
Change Date: 24 April 2020
Change Type: Correction
Change Details: The authorship list on the original article  was incorrect and should instead show as Aklilu Abera Ayele, Kemal Ahmed Seid and��Oumer Sada Muhammed. The authors apologise for this error.
Ethics approval and consent to participate
: Ethical approval and clearances was obtained from Institutional Review Board (IRB), college of medicine and health sciences, Wollo University. Written and oral consent was obtained from participants.
: Not applicable (the manuscript does not contain any individual person’s data in any form).
: The authors declare that they have no competing interests.