Article History
Received: 4 July 2018
Accepted: 3 April 2019
First Online: 15 April 2019
Compliance with ethical standards
:
: All participants were instructed about the objective of the study and assured of confidentiality and anonymity; their informed consent was also obtained. Ethical clearance was obtained from the Institutional Review Board of Mekelle University, College of Health Sciences and a letter of support was written by the Ethiopian Sugar Corporation.
: The authors declare that they have no conflict of interest.