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.
Becker K, Conrad A, Kirsch N, Kolossa-Gehring M, Schulz C, Seiwert M, Seifert B.Becker K, et al.Int J Hyg Environ Health. 2007 May;210(3-4):267-9. doi: 10.1016/j.ijheh.2007.01.010. Epub 2007 Feb 21.Int J Hyg Environ Health. 2007.PMID: 17317311
Schulz C, Conrad A, Becker K, Kolossa-Gehring M, Seiwert M, Seifert B.Schulz C, et al.Int J Hyg Environ Health. 2007 May;210(3-4):271-97. doi: 10.1016/j.ijheh.2007.01.034. Epub 2007 Mar 7.Int J Hyg Environ Health. 2007.PMID: 17347043
Kolossa-Gehring M, Becker K, Conrad A, Lüdecke A, Riedel S, Seiwert M, Schulz C, Szewzyk R.Kolossa-Gehring M, et al.Int J Hyg Environ Health. 2007 Oct;210(5):535-40. doi: 10.1016/j.ijheh.2007.07.018. Epub 2007 Sep 17.Int J Hyg Environ Health. 2007.PMID: 17870665