An official website of the United States government
Here’s how you know
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.
... with cystic fibrosis is not increased.
Absence of vasdeferensAbsent vasa CAVD CBAVD Congenital absence of vasdeferens Congenital aplasia of vasdeferens Congenital bilateral absence ...