Received: 21 January 2021
Accepted: 20 September 2021
First Online: 29 September 2021
: Ethical clearance was obtained from the Institutional Ethical Review Committee of Institute of Public Health, College of Medicine and Health Sciences, University of Gondar. Permission letter was also obtained from each flour mill manager. Workers in flour mills in Bahir Dar City, who were selected to participate, were informed about the purpose of the study, the importance of their participation, and the right to withdraw any time amid data collection process. Written informed consent was obtained before the data collection.
: Not applicable.
: The authors declare that they have no competing interests.