Factors Predicting Malignancy in Patients with Polymyositis and Dermatomyostis: A Systematic Review and Meta-Analysis Lu, Xin ; Yang, Hanbo ; Shu, Xiaoming ; Chen, Fang ; Zhang, Yinli ; Zhang, Sigong ; Peng, Qinglin ; Tian, Xiaolan ; Wang, Guochun Abstract Publication: PLoS ONE Pub Date: April 2014 DOI: 10.1371/journal.pone.0094128 Bibcode: 2014PLoSO...994128L