Primary Sjogren's Syndrome with Bilateral Pleural Effusion as the Initial Manifestation:a Case Report and Literature Review 
CHEN Aifeng,SHEN Xiaoqiang,XIE Wenjun,RU Chuhui,XU Jianpu
Chinese General Practice . 2019, (17): 2136 -2140 .  DOI: 10.12114/j.issn.1007-9572.2018.00.211