1. Department of Obstetrics and Gynecology, Nankai Hospital, Tianjin Academy of Integrative Medicine, Tianjin, China
2. Graduate School, Tianjin Medical University, Tianjin, China
3. Department of Clinical Research, Nankai Hospital, Tianjin Academy of Integrative Medicine, Tianjin, China
4. Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
5. Department of Neurology, Nankai Hospital, Tianjin Academy of Integrative Medicine, Tianjin, China