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.
Frimodt-Møller N, Espersen F.Frimodt-Møller N, et al. Among authors: espersen f.APMIS. 2000 Jul-Aug;108(7-8):525-30. doi: 10.1034/j.1600-0463.2000.d01-92.x.APMIS. 2000.PMID: 11167549