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.
Chan I, El-Zurghany A, Zendah B, Benghazil M, Oyama N, Hamada T, McGrath JA.Chan I, et al. Among authors: mcgrath ja.Clin Exp Dermatol. 2003 Sep;28(5):545-8. doi: 10.1046/j.1365-2230.2003.01341.x.Clin Exp Dermatol. 2003.PMID: 12950350