Circulating Dickkof-1 as a potential biomarker associated with the prognosis of patients with rheumatoid arthritis-associated interstitial lung disease. Issue 9 (5th May 2021) - Xue, Jing; Wang, Yu-Jiao; Xia, He-Chun; Liang, Xue-Yun; Cui, Jie-Da; Yu, Min; Liu, Xiao-Ming; Chi, Shu-Hong; Chen, Juan