Department of Traditional Chinese Medicine, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China;
Department of Obstetrics&Gynaecology, National Key Discipline and Clinical Base, Heilongjiang University of Chinese Medicine, Harbin 150040, China;
Department of Obstetrics&Gynaecology, National Key Discipline and Clinical Base, Heilongjiang University of Chinese Medicine, Harbin 150040, China;
Department of Obstetrics&Gynaecology, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China;
Department of Obstetrics&Gynaecology, The University of Hong Kong, Hong Kong Special Administrative Region, China;
Department of Obstetrics&Gynaecology, National Key Discipline and Clinical Base, Heilongjiang University of Chinese Medicine, Harbin 150040, China;