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.
Garg A, Grant-Kels JM.Garg A, et al.Clin Dermatol. 2012 Mar-Apr;30(2):202-9. doi: 10.1016/j.clindermatol.2011.06.008.Clin Dermatol. 2012.PMID: 22330664