1. Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China
2. The Shandong Institute for Endemic Disease Control and Research, Shandong, China
3. Section of Endocrinology, Diabetes, and Nutrition, Boston University School of Medicine, Boston, MA
4. Human Nutrition Laboratory, Swiss Federal Institute of Technology, Zurich, Switzerland
5. Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin, China