Prognosis of pneumonectomy in patients with nonsmall cell lung cancer by pleural lavage cytology：a metaanalysis
Wu Qinxun1,2, Liu Hua2, Li Yujing1,Ma Jilong1
Clinical Focus . 2018, (7): 603 -608 .  DOI: 10.3969/j.issn.1004-583X.2018.07.012