1. Department of Obstetrics and Gynecology; University of Wisconsin-Madison; Madison WI USA
2. Department of Rheumatology, Qilu Hospital; Shandong University; Jinan Shandong China
3. Department of Rheumatology and Immunology; Affiliated Hospital of Qingdao University; Qingdao Shandong China
4. Department of Obstetrics and Gynecology; Nanshan District Maternal and Child Healthcare Hospital; Shenzhen Guangdong China
5. Department of Reproductive Endocrinology; Zhejiang University; Hangzhou Zhejiang China
6. Department of Pediatrics; 3rd Affiliated Hospital of Guangzhou Medical University; Guangzhou Guangdong China
7. Department of Gynecology, Shanghai First Maternity and Infant Hospital; Tongji University School of Medicine; Shanghai China
8. Cardiovascular Medicine Center; Affiliated Hospital of Guangdong Medical University; Zhanjiang Guangdong China