1. Jürgen B, Joachim S (2007) Ankylosing spondylitis. Lancet 369(9570):1379–1390
2. Dai SM, Han XH, Zhao DB, Shi YQ, Liu Y, Meng JM (2003) Prevalence of rheumatic symptoms, rheumatoid arthritis, ankylosing spondylitis, and gout in Shanghai, China: a COPCORD study. J Rheumatol 30(10):2245–2251
3. Zeng QY (2003) Ankylosing spondylitis in Shantou, China: 15 years’ clinical experience. J Rheumatol 30(8):1816–1821
4. Cornell P, Oliver SM (2004) Ankylosing spondylitis: clinical update. Musculoskeletal Care 2(3):187–193
5. Tam LS, Chan KY, Li EK (2007) The influence of illness and variables associated with functional limitations in Chinese patients with ankylosing spondylitis. J Rheumatol 34(5):1032–1039