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.
Mean pulmonary artery pressure (mPAP) among the six groups of rats. n = 10 rats for all the groups. Results are mean ± SD. *P < 0.01 for normoxia vs. all the other groups but normoxia + sildenafil. **P < 0.01 for within hypoxia 4 weeks group (hypoxia vs. hypoxia + sildenafil) and for within hypoxia 8 weeks group (hypoxia vs. hypoxia + sildenafil), respectively.
