%0 Journal Article %T The Risk Factors for Nosocomial Infection in Chinese Patients with Active Rheumatoid Arthritis in Shanghai %A Wei-Lin Xie %A Zhuo-Ling Li %A Zhen Xu %A Huan-Ru Qu %J ISRN Rheumatology %D 2012 %I Hindawi Publishing Corporation %R 10.5402/2012/215692 %U http://dx.doi.org/10.5402/2012/215692