Development and validation of a nomogram for predicting the prognosis of lung cancer patients with brain metastases harboring EGFR or ALK mutations: a multicenter retrospective study

L Lun Liang M Muling Shen C Congzhi Qin C Chang Liu C Chaojue Huang L Liangbao Wen S Shixing Qin A Anqi Li (Department of Medical Genetics, School of Basic Medicine, Institute for Brain Research, Tongji Medical College, Huazhong University of Science and Technology) F Fangyi Wei S Shufang Deng D Donggui Wei C Chujun Qin Y Yonggao Mou (Department of Neurosurgery, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center) H Hao Duan (Department of Neurosurgery, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center) Y Yongjia Yu D Daqin Feng