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.
Chen M, Marinkovich MP, Jones JC, O'Toole EA, Li YY, Woodley DT.Chen M, et al. Among authors: woodley dt.J Invest Dermatol. 1999 Feb;112(2):177-83. doi: 10.1046/j.1523-1747.1999.00491.x.J Invest Dermatol. 1999.PMID: 9989793Free article.