Yun-xin Ji et al.
Zhonghua jie he he hu xi za zhi = Zhonghua jiehe he huxi zazhi = Chinese journal of tuberculosis and respiratory diseases, 31(4), 264-267 (2008-10-14)
To study the clinical significance of matrix metalloproteinase-9 (MMP-9), tissue inhibitor of metalloproteinases (TIMPs) and transforming growth factor beta 1 (TGF-beta1) in the serum of patients with rheumatoid arthritis (RA) associated interstitial lung disease (ILD). Twenty-nine patients with RA only