1. Postgraduate School Molecular Medicine, Erasmus MC-University Medical Center, Rotterdam, The Netherlands;
2. Biobank, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, China;
3. Department of Obstetrics and Gynecology, The First People's Hospital of Yunnan Province, Kunming, Yunnan 650031, China;
4. Biomedical Research Center, Northwest Minzu University, Lanzhou, Gansu 730030, China.