1. Department of Reproduction and Genetics, the First Affiliated Hospital of Kunming Medical University, No. 295 Xi Chang road, Kunming, China
2. Department of Neurology, the First Affiliated Hospital of Kunming Medical University, No. 295 Xi Chang road, Kunming, China
3. Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, No. 13 Hang Kong road, Wuhan, China