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.
Maduabuchi JM, Adigba EO, Nzegwu CN, Oragwu CI, Okonkwo IP, Orisakwe OE.Maduabuchi JM, et al. Among authors: orisakwe oe.Int J Environ Res Public Health. 2007 Mar;4(1):28-33. doi: 10.3390/ijerph2007010005.Int J Environ Res Public Health. 2007.PMID: 17431312Free PMC article.