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.
Reading I, Walker-Bone K, Palmer KT, Cooper C, Coggon D.Reading I, et al. Among authors: coggon d.Am J Epidemiol. 2003 Mar 15;157(6):524-30. doi: 10.1093/aje/kwf225.Am J Epidemiol. 2003.PMID: 12631542
Reading I, Walker-Bone K, Palmer KT, Cooper C, Coggon D.Reading I, et al. Among authors: coggon d.Scand J Work Environ Health. 2005 Oct;31(5):387-93. doi: 10.5271/sjweh.922.Scand J Work Environ Health. 2005.PMID: 16273965Free article.