RT Journal Article SR Electronic T1 Hyperprogression to camrelizumab in a patient with esophageal squamous cell carcinoma harboring EGFR kinase domain duplication JF Journal for ImmunoTherapy of Cancer JO J Immunother Cancer FD BMJ Publishing Group Ltd SP e000793 DO 10.1136/jitc-2020-000793 VO 8 IS 1 A1 Wang, Wei A1 Wu, Meihong A1 Liu, Minglu A1 Yan, Zhengqing A1 Wang, Guoqiang A1 Mao, Dongliang A1 Wang, Mei YR 2020 UL http://jitc.bmj.com/content/8/1/e000793.abstract AB Markup server — Error Not Found The page you were trying to reach could not be found. Please check the address for the page you were trying to reach. If you believe you have reached this page in error, you may contact us with any questions.