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.
Kodavanti UP, Costa DL, Bromberg PA.Kodavanti UP, et al. Among authors: costa dl.Environ Health Perspect. 1998 Feb;106 Suppl 1(Suppl 1):111-30. doi: 10.1289/ehp.98106s1111.Environ Health Perspect. 1998.PMID: 9539009Free PMC article.Review.