1. Department of Histology and Embryology, School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 102488, China
2. Reproductive and Genetic Medical Center, Dalian Women and Children’s Medical Group, Dalian 116000, Liaoning, China
3. Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
4. School of Chinese Pharmacy, Beijing Key Lab for Quality Evaluation of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China