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.
Skajaa N, Horváth-Puhó E, Sundbøll J, Adelborg K, Rothman KJ, Sørensen HT.Skajaa N, et al. Among authors: sorensen ht.Epidemiology. 2018 Nov;29(6):777-783. doi: 10.1097/EDE.0000000000000892.Epidemiology. 2018.PMID: 30028346