Fig 5. Long-term survival as a function of time of symptom onset.
Survival curves out to 4.5 years of follow up shown above and Kaplan-Meier estimates of 12-month survival shown below.
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.