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The canonical characteristics and mutation profiles of 21 primary and 48 acquired resistance to icotinib in EGFRum advanced NSCLC patients. B, blood; CNV, Copy number variation; EGFRum, epidermal growth factor receptor uncommon mutation; F, female; M, male; NSCLC, non–small cell lung cancer. Smoking history (N, no; Y, yes). Type of sample (H, histology; Ht, hydrothorax)
