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.
Dämmgen U, Hutchings NJ.Dämmgen U, et al.Environ Pollut. 2008 Aug;154(3):488-97. doi: 10.1016/j.envpol.2007.03.017. Epub 2007 Jun 11.Environ Pollut. 2008.PMID: 17562350
Dämmgen U, Grünhage L, Küsters A, Jäger HJ.Dämmgen U, et al.Environ Pollut. 1994;85(1):35-42. doi: 10.1016/0269-7491(94)90235-6.Environ Pollut. 1994.PMID: 15091682