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.
Briner W.Briner W.Int J Environ Res Public Health. 2010 Dec;7(12):4278-80. doi: 10.3390/ijerph7124278. Epub 2010 Dec 20.Int J Environ Res Public Health. 2010.PMID: 21318008Free PMC article.No abstract available.
Briner W.Briner W.Int J Environ Res Public Health. 2010 Jan;7(1):303-13. doi: 10.3390/ijerph7010303. Epub 2010 Jan 25.Int J Environ Res Public Health. 2010.PMID: 20195447Free PMC article.Review.