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.
Hugues A, Guinet-Lacoste A, Bin S, Villeneuve L, Lunven M, Pérennou D, Giraux P, Foncelle A, Rossetti Y, Jacquin-Courtois S, Luauté J, Rode G.Hugues A, et al. Among authors: giraux p.BMJ Open. 2021 Nov 24;11(11):e052086. doi: 10.1136/bmjopen-2021-052086.BMJ Open. 2021.PMID: 34819284Free PMC article.