1. Department of Endocrinology, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400037, China
2. Department of Obstetrics and Gynecology, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400037, China
3. Department of Health Management, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400037, China
4. Department of Nutrition and Food Science College of Agriculture and Life Sciences, Texas A&M University, Texas 77843, USA