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.
Nieuwenhuijsen MJ, Sandiford CP, Lowson D, Tee RD, Venables KM, McDonald JC, Newman Taylor AJ.Nieuwenhuijsen MJ, et al. Among authors: sandiford cp.Occup Environ Med. 1994 Sep;51(9):584-8. doi: 10.1136/oem.51.9.584.Occup Environ Med. 1994.PMID: 7951788Free PMC article.