1. Center for Reproductive Medicine, Affiliated Maternity and Child Health Care Hospital of Nantong University, Nantong, Jiangsu, China
2. Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, Jiangsu, China
3. Department of Internal Medicine, The Second People's Hospital of Nantong, Nantong, Jiangsu, China
4. Lianyungang Higher Vocational Technical College of Traditional Chinese Medicine, Lianyungang, Jiangsu, China
5. Nantong Institute of Genetics and Reproductive Medicine, Affiliated Maternity and Child Health Care Hospital of Nantong University, Nantong, Jiangsu, China
6. Nantong Key Laboratory of Genetics and Reproductive Medicine, Nantong, Jiangsu, China