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.
Alfano V, Ercolano S.Alfano V, et al. Among authors: ercolano s.Appl Health Econ Health Policy. 2020 Aug;18(4):509-517. doi: 10.1007/s40258-020-00596-3.Appl Health Econ Health Policy. 2020.PMID: 32495067Free PMC article.