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.
Altieri A, Tavani A, Gallus S, La Vecchia C.Altieri A, et al. Among authors: gallus s.Ann Epidemiol. 2004 Aug;14(7):461-6. doi: 10.1016/j.annepidem.2003.11.005.Ann Epidemiol. 2004.PMID: 15301782
Tavani A, Bertuzzi M, Gallus S, Negri E, La Vecchia C.Tavani A, et al. Among authors: gallus s.J Clin Epidemiol. 2005 Jul;58(7):747-50. doi: 10.1016/j.jclinepi.2004.01.023. Epub 2005 Apr 20.J Clin Epidemiol. 2005.PMID: 15939229