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.
Kaplan–Meier plot of overall survival for patients with squamous non-small cell lung cancer (NSCLC) and those with nonsquamous NSCLC, by mutation status from initiation of second-line therapy.
Abbreviations: ALK, anaplastic lymphoma kinase; EGFR, epidermal growth factor receptor; EGFR/ALK +, positive status; Nonsq, nonsquamous; -/unk, negative/unknown status.
