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.
Meng Y, Brennan A, Purshouse R, Hill-McManus D, Angus C, Holmes J, Meier PS.Meng Y, et al. Among authors: brennan a.J Health Econ. 2014 Mar;34(100):96-103. doi: 10.1016/j.jhealeco.2013.12.006. Epub 2014 Jan 19.J Health Econ. 2014.PMID: 24508846Free PMC article.