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.
Chang ET, Smedby KE, Hjalgrim H, Porwit-MacDonald A, Roos G, Glimelius B, Adami HO.Chang ET, et al.J Natl Cancer Inst. 2005 Oct 5;97(19):1466-74. doi: 10.1093/jnci/dji293.J Natl Cancer Inst. 2005.PMID: 16204696
Chang ET, Smedby KE, Hjalgrim H, Glimelius B, Adami HO.Chang ET, et al.J Natl Cancer Inst. 2006 Jan 4;98(1):61-8. doi: 10.1093/jnci/djj005.J Natl Cancer Inst. 2006.PMID: 16391372