An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Arason A, Jonasdottir A, Barkardottir RB, Bergthorsson JT, Teare MD, Easton DF, Egilsson V.Arason A, et al. Among authors: barkardottir rb.J Med Genet. 1998 Jun;35(6):446-9. doi: 10.1136/jmg.35.6.446.J Med Genet. 1998.PMID: 9643283Free PMC article.