Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Progression‐free survival (PFS) of all patients (a) and comparisons of survival according to Group A (EGFR mutation only in ctDNA) versus Group B (EGFR mutation in ctDNA and tumor DNA) (b); final dose of afatinib (c); and type of EGFR mutation (d). EGFRm, epidermal growth factor receptor mutation; ctDNA, circulating tumor DNA
