1. Unit of Human Genetics, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
2. Center of Reproductive Medicine, Linyi People's Hospital, Linyi, China
3. Department of Obstetrics and Gynecology, Shandong Medical College, Linyi, China
4. Department of Medicine, Kolding Hospital, Kolding, Denmark
5. Department of Endocrinology, Odense University Hospital, Odense, Denmark
6. Department of Hematology, Roskilde Hospital, Roskilde, Denmark
7. Epidemiology, Biostatistics, and Biodemography, Department of Public Health, University of Southern Denmark, Odense, Denmark