University of Hong Kong, School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, P. R. China. Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Hubei Province, Wuhan 430022, P. R. China. Workstation of Zhu Nansun, National Master of Chinese Medicine, Workstation of Yu Jin Master of Gynaecology of Integrative Medicine, School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, P. R. China. Department of Clinical Oncology, School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, P. R. China. Hong Kong Association for Integration of Chinese-Western Medicine, The University of Hong Kong, Hong Kong SAR, P. R. China.