High SHP2 expression determines the efficacy of PD‐1/PD‐L1 inhibitors in advanced KRAS mutant non‐small cell lung cancer oleh Hui‐Bo Feng, Yu Chen, Zhi Xie, Jie Jiang, Yu‐Min Zhong, Wei‐Bang Guo, Wen‐Qing Yan, Zhi‐Yi Lv, Dan‐Xia Lu, Hong‐Ling Liang, Fang‐Ping Xu, Jin‐Ji Yang, Xue‐Ning Yang, Qing Zhou, Dong‐Kun Zhang, Zhou Zhang, Shao‐Kun Chuai, Heng‐Hui Zhang, Yi‐Long Wu, Xu‐Chao Zhang