1. Division of Rheumatology, Department of Medicine, Queen Mary Hospital, Pokfulam Road, Hong Kong; Department of Medicine, 4th Floor, Professorial Block, Queen Mary Hospital, Pokfulam Road, Hong Kong Tel: (+852) 2855 4782; Fax: (+852) 2872 5828
2. Division of Rheumatology, Department of Medicine, Queen Mary Hospital, Pokfulam Road, Hong Kong