%0 Journal Article %T Male smokers with HLA-B27 positivity, SI joints inflammation have more radiological damages and higher prevalence of AS while females have higher BASDAI scores: observations from cluster analyses of a group of SpA patients %A Chan, Shirley Chiu Wai %A Tsang, Helen Hoi Lun %A Lau, Chak Sing %A Chung, Ho Yin %J Hong Kong Bulletin on Rheumatic Diseases %V 16 %N 2 %P 42-47 %D 2016-12-30 %I Sciendo %~ DeepDyve