Clinical Characteristics and Influencing Factors of Polymyositis and Dermatomyositis Combined with Interstitial Lung Disease in the Northeast Sichuan Province in China 
TANG Ziyi,YI Ting,WANG Dan,ZHENG Jianxiong,XIONG Qin,ZHANG Quanbo,QING Yufeng
Chinese General Practice . 2019, (16): 1960 -1965 .  DOI: 10.12114/j.issn.1007-9572.2019.00.280