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.
Orange: 3 SMN2 copies and asymptomatic at last follow-up; green: 2 SMN2 copies and asymptomatic at last follow-up; blue: 2 SMN2 copies and symptomatic at last follow-up. Age at treatment for each patient is indicated in the graph legends. SMN = survival motor neuron.
