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Subsequent treatment in the (A) ITT population, (B) overall survival, and (C) objective response rate for subsequent treatments. CR, complete response; DFS, disease-free survival; EGFR, epidermal growth factor receptor; NC, not calculable; NR, not reached; ITT, intention-to-treat; PD, progressive disease; PR, partial response; SD, stable disease; TKI, tyrosine kinase inhibitor; VP, vinorelbine plus cisplatin. *Univariate test.
