1. School of Public Health Shandong University Jinan China
2. Department of Food Science and Human Nutrition Michigan State University East Lansing Michigan USA
3. Department of Women, Children and Family Health Science University of Illinois at Chicago, College of Nursing Chicago Illinois USA
4. Haydom Lutheran Hospital Haydom Tanzania
5. Johns Hopkins Bloomberg School of Public Health Baltimore Maryland USA
6. Department of Environmental Health Science University of Georgia Athens Georgia USA
7. Department of Agricultural, Food, and Resource Economics Michigan State University East Lansing Michigan USA