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. 2020 Feb 28;13:1845–1849. doi: 10.2147/OTT.S236382

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© 2020 Chen et al.

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Clinical responses to afatinib treatment. (A) Prior to afatinib treatment; (B) The patient achieved partial response (PR) after one month of afatinib treatment. (C) The PR was confirmed 3 months after afatinib treatment. (D) Progressive disease (PD) was detected 5.5 months after the afatinib treatment. The red circles indicate the lung lesion.