Department of Medicine and Department of Surgery, The University of Hong Kong, Queen Mary Hospital, Hong Kong, Hong Kong
Department of Obstetrics and Gynaecology, Hong Kong, Hong Kong, China
Tung Wah Eastern Hospital, Hong Kong, Hong Kong
Shanghai TCM-INTEGRATED Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
Tung Wah Hospital, Hong Kong, Hong Kong
The Hong Kong Council of Social Service, Wan Chai, Hong Kong, China
The Hong Kong Council on Smoking and Health (COSH), Hong Kong, China
HKSKH Lady MacLehose Center, Hong Kong, Hong Kong