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class=\u0022nlm-country\u0022 data-country=\u0022CN\u0022\u003EChina\u003C\/span\u003E\n\u003C\/span\u003E\u003Cspan class=\u0022nlm-aff\u0022\u003E\n\n\u003Cspan class=\u0022nlm-institution-wrap\u0022\u003E\u003Cspan class=\u0022nlm-institution\u0022 data-content-type=\u0022org-name\u0022 data-hwp-id=\u0022institution-2\u0022\u003ECollaborative Innovation Center for Cancer Medicine\u003C\/span\u003E\u003C\/span\u003E\n\u003Cspan class=\u0022nlm-addr-line\u0022 data-content-type=\u0022city\u0022\u003EGuangzhou\u003C\/span\u003E\n\u003Cspan class=\u0022nlm-country\u0022 data-country=\u0022CN\u0022\u003EChina\u003C\/span\u003E\n\u003C\/span\u003E\u003Cspan class=\u0022nlm-aff\u0022\u003E\n\n\u003Cspan class=\u0022nlm-institution-wrap\u0022\u003E\u003Cspan class=\u0022nlm-institution\u0022 data-content-type=\u0022org-division\u0022 data-hwp-id=\u0022institution-9\u0022\u003EDepartment of Radiotherapy\u003C\/span\u003E\u003Cspan class=\u0022nlm-institution\u0022 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class=\u0022nlm-given-names\u0022\u003EHongyun\u003C\/span\u003E \u003Cspan class=\u0022nlm-surname\u0022\u003EZhao\u003C\/span\u003E \u003Cspan class=\u0022nlm-aff\u0022\u003E\n\n\u003Cspan class=\u0022nlm-institution-wrap\u0022\u003E\u003Cspan class=\u0022nlm-institution\u0022 data-content-type=\u0022org-name\u0022 data-hwp-id=\u0022institution-1\u0022\u003EState Key Laboratory of Oncology in South China\u003C\/span\u003E\u003C\/span\u003E\n\u003Cspan class=\u0022nlm-addr-line\u0022 data-content-type=\u0022city\u0022\u003EGuangzhou\u003C\/span\u003E\n\u003Cspan class=\u0022nlm-country\u0022 data-country=\u0022CN\u0022\u003EChina\u003C\/span\u003E\n\u003C\/span\u003E\u003Cspan class=\u0022nlm-aff\u0022\u003E\n\n\u003Cspan class=\u0022nlm-institution-wrap\u0022\u003E\u003Cspan class=\u0022nlm-institution\u0022 data-content-type=\u0022org-name\u0022 data-hwp-id=\u0022institution-2\u0022\u003ECollaborative Innovation Center for Cancer 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data-content-type=\u0022org-division\u0022 data-hwp-id=\u0022institution-7\u0022\u003EDepartment of Medical Oncology\u003C\/span\u003E\u003Cspan class=\u0022nlm-institution\u0022 data-content-type=\u0022org-name\u0022 data-hwp-id=\u0022institution-8\u0022\u003ESun Yat-sen University Cancer Center\u003C\/span\u003E\u003C\/span\u003E\n\u003Cspan class=\u0022nlm-addr-line\u0022 data-content-type=\u0022street\u0022\u003E651 Dongfeng East Road\u003C\/span\u003E\n\u003Cspan class=\u0022nlm-addr-line\u0022 data-content-type=\u0022postcode\u0022\u003E510060\u003C\/span\u003E\n\u003Cspan class=\u0022nlm-addr-line\u0022 data-content-type=\u0022city\u0022\u003EGuangzhou\u003C\/span\u003E\n\u003Cspan class=\u0022nlm-country\u0022 data-country=\u0022CN\u0022\u003EChina\u003C\/span\u003E\n\u003C\/span\u003E \u003Cspan class=\u0022nlm-contrib-id\u0022 data-contrib-id-type=\u0022orcid\u0022 data-authenticated=\u0022false\u0022 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class=\u0022inside\u0022\u003E\u003Cdiv class=\u0022panel-pane pane-highwire-article-citation\u0022\u003E\n  \n        \u003Ch2 class=\u0022pane-title\u0022\u003ECitation\u003C\/h2\u003E\n    \n  \n  \u003Cdiv class=\u0022pane-content\u0022\u003E\n    \u003Cdiv class=\u0022highwire-article-citation highwire-citation-type-highwire-article node9244\u0022 data-node-nid=\u00229244\u0022 id=\u0022node-9244--21878831158\u0022 data-pisa=\u0022jitc;7\/1\/120\u0022 data-pisa-master=\u0022jitc;10.1186\/s40425-019-0600-6\u0022 data-apath=\u0022\/jitc\/7\/1\/120.atom\u0022\u003E\u003Cdiv class=\u0022highwire-cite highwire-cite-highwire-article highwire-citation-v1-cp clearfix bmjj-article-citation\u0022\u003E\n  \n  \n    \t\u003Cdiv class=\u0022highwire-cite-authors\u0022\u003E\u003Cspan class=\u0022highwire-citation-authors\u0022\u003E\u003Cspan class=\u0022highwire-citation-author first\u0022 data-delta=\u00220\u0022\u003E\u003Cspan class=\u0022nlm-surname\u0022\u003EZhou\u003C\/span\u003E Y\u003C\/span\u003E, \u003Cspan class=\u0022highwire-citation-author\u0022 data-delta=\u00221\u0022\u003E\u003Cspan class=\u0022nlm-surname\u0022\u003ELin\u003C\/span\u003E Z\u003C\/span\u003E, \u003Cspan class=\u0022highwire-citation-author\u0022 data-delta=\u00222\u0022\u003E\u003Cspan class=\u0022nlm-surname\u0022\u003EZhang\u003C\/span\u003E X\u003C\/span\u003E\u003C\/span\u003E\u003Cspan class=\u0022citation-et\u0022\u003E, et al\u003C\/span\u003E\u003C\/div\u003E\n  \n      \u003Cdiv class=\u0022highwire-cite-title\u0022\u003EFirst-line treatment for patients with advanced non-small cell lung carcinoma and high PD-L1 expression: pembrolizumab or pembrolizumab plus chemotherapy\u003C\/div\u003E  \n      \n    \t\u003Cdiv class=\u0022highwire-cite-metadata bmjj-citation-metadata\u0022\u003E\u003Cspan class=\u0022highwire-cite-metadata-journal highwire-cite-metadata\u0022\u003EJournal for ImmunoTherapy of Cancer \u003C\/span\u003E\u003Cspan class=\u0022highwire-cite-metadata-year highwire-cite-metadata\u0022\u003E2019;\u003C\/span\u003E\u003Cspan class=\u0022highwire-cite-metadata-volume highwire-cite-metadata\u0022\u003E7:\u003C\/span\u003E\u003Cspan class=\u0022highwire-cite-metadata-elocation-id highwire-cite-metadata\u0022\u003E120. \u003C\/span\u003E\u003Cspan class=\u0022highwire-cite-metadata-doi highwire-cite-metadata\u0022\u003E\u003Cspan class=\u0022label\u0022\u003Edoi:\u003C\/span\u003E 10.1186\/s40425-019-0600-6 \u003C\/span\u003E\u003C\/div\u003E\n  \n  \n  \n\u003C\/div\u003E\u003C\/div\u003E  \u003C\/div\u003E\n\n  \n  \u003C\/div\u003E\n\u003Cdiv class=\u0022panel-separator\u0022\u003E\u003C\/div\u003E\u003Cdiv class=\u0022panel-pane pane-panels-mini pane-jnl-template-bmjj-art-pub-history\u0022\u003E\n  \n      \n  \n  \u003Cdiv class=\u0022pane-content\u0022\u003E\n    \u003Cdiv class=\u0022panel-display highwire-1col-stacked-layout\u0022 id=\u0022mini-panel-jnl_template_bmjj_art_pub_history\u0022\u003E\n\t  \n  \u003Cdiv 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