1. Department of Obstetrics and Gynecology, Endocrinology and Metabolism, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China,
2. State Key Laboratory of Microbial Metabolism and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China,
3. Clinical Laboratory, the Third Affiliated Hospital, Nantong University, Wuxi, China,
4. Department of Obstetrics and Gynecology, Traditional Chinese Medicine Hospital of Kunshan, Jiangsu, China,
5. Department of Endocrinology and Metabolism, Qidong People’s Hospital, Jiangsu, China,
6. Department of Public Health and Community Medicine, Tufts University School of medicine, MA, USA, and
7. Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Medford, MA, USA