Fig. 8. Comparison of lung developmental stages and their length between different species used in experimental surgery. Reference is human lung development (top) and at bottom the % of gestation. Courtesy of Xenia Roubliova.
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.