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 displaying freedom from chronic rejection (BOS) post lung transplantation for the idiopathic pulmonary fibrosis group [indicated by a solid line (—)] vs. the systemic sclerosis group [indicated by a dashed line (---)]. For the first five years after lung transplantation, there is no significant difference between the two groups (Log-rank; p=0.14).
