Figure 3.
Comparison of 6‐min walking distance (6MWD) pre‐ and post‐balloon pulmonary angioplasty in all patients, younger group (<80 years) and oldest‐old group (≥80 years)
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.