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.
Pedigree chart. Females are indicated with circles and males with squares. The proband is indicated by an arrow. Filled squares indicate affected individuals and the small black square indicates mutation carrier status. TOP, termination of pregnancy.
