Case Report
A non-small cell lung cancer (NSCLC) patient with leptomeningeal metastasis harboring rare epidermal growth factor receptor (EGFR) mutations G719S and L861Q benefited from doubling dosage of osimertinib: a case report
Chang-Guo Shan, Hui Wang, Tao Lin, Da Liu, Lei Wen, Zhi-Jie Chen, Jun-Jie Zhen, Ming-Yao Lai, Lu Zhang, Xiao Zou, Wei-Ping Hong, Lin-Bo Cai