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.
(A) Time‐on‐treatment (TOT) for first‐line treatment with afatinib in all patients (n = 324) with advanced NSCLC harboring EGFR mutations. (B) TOT with afatinib, when osimertinib (group A, n = 126) and other medications (group B, n = 198) are used as second‐line treatment
