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.
Squares indicate mean values, with lines indicating 95% CIs. Diamonds indicate the pooled effect estimates, with the tips of the diamonds indicating the 95% CIs. IHCC indicates irradiated homologous costal cartilage.
