A nomogram to predict prognosis of patients with lung adenosquamous carcinoma: a population-based study - Liang, Jiaqi; Sui, Qihai; Zheng, Yuansheng; Bi, Guoshu; Chen, Zhencong; Li, Ming; Huang, Yiwei; Lu, Tao; Zhan, Cheng; Guo, Weigang (Journal of Thoracic Disease, 2020)