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.
Woudt LP, van den Heuvel JJ, van Raamsdonk-Duin MM, Mager WH, Planta RJ.Woudt LP, et al.Nucleic Acids Res. 1985 Nov 11;13(21):7729-39. doi: 10.1093/nar/13.21.7729.Nucleic Acids Res. 1985.PMID: 2999703Free PMC article.