1. Department of Obstetrics and GynecologyKey Laboratory and Unit of Infertility in Chinese Medicine, First Affiliated Hospital, Heilongjiang University of Chinese Medicine 150040 Harbin China
2. Department of Physiology/EndocrinologyInstitute of Neuroscience and PhysiologyThe Sahlgrenska AcademyUniversity of Gothenburg 40530 Gothenburg Sweden
3. Department of Traditional Chinese MedicineThe First Affiliated Hospital of Guangzhou Medical University 510120 Guangzhou China
4. Institute of Integrated Traditional Chinese Medicine and Western MedicineGuangzhou Medical University 510120 Guangzhou China
5. Department of Women's and Children's HealthUppsala University 75185 Uppsala Sweden
6. Centre for Trophoblast ResearchDepartment of PhysiologyDevelopment and NeuroscienceUniversity of Cambridge Cambridge CB2 3EG UK
7. Department of Obstetrics and GynecologySahlgrenska University HospitalSahlgrenska AcademyUniversity of Gothenburg 41345 Gothenburg Sweden