1. Department of Public Health, College of Health Science, Salale University, Fitche, Ethiopia
2. Department of Nursing, College of Medicine and Health science, Mizant Tepi University, Ethiopia
3. Tirunesh Beijing Hospital, Addis Ababa, Ethiopia
4. Department of Environmental Health, College of Medicine and Health Sciences, Wollo University, Dessie, Ethiopia
5. Adelaide Exposure Science and Health, School of Public Health, University of Adelaide, Adelaide, Australia
6. Department of Internal Medicine, Adama Hospital Medical College, Adama, Ethiopia
7. Department of Public Health, Rift Valley University, Addis Ababa, Ethiopia
8. Ethiopian Institute of Water Resources, Addis Ababa University, Addis Ababa, Ethiopia