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.
Gregório M, Teixeira A, Henriques T, Páscoa R, Baptista S, Carvalho R, Martins C.Gregório M, et al. Among authors: martins c.BMJ Open. 2021 Oct 12;11(10):e048488. doi: 10.1136/bmjopen-2020-048488.BMJ Open. 2021.PMID: 34642193Free PMC article.
Sá L, Ribeiro O, Azevedo LF, Couto L, Costa-Pereira A, Hespanhol A, Santos P, Martins C.Sá L, et al. Among authors: martins c.BMJ Open. 2016 Oct 5;6(10):e011755. doi: 10.1136/bmjopen-2016-011755.BMJ Open. 2016.PMID: 27707825Free PMC article.
Baptista S, Teles Sampaio E, Heleno B, Azevedo LF, Martins C.Baptista S, et al. Among authors: martins c.J Med Internet Res. 2018 Jun 26;20(6):e228. doi: 10.2196/jmir.9070.J Med Internet Res. 2018.PMID: 29945857Free PMC article.
Baptista S, Heleno B, Pinto M, Teixeira A, Taylor KL, Martins C.Baptista S, et al. Among authors: martins c.BMJ Open. 2019 Oct 7;9(10):e028938. doi: 10.1136/bmjopen-2019-028938.BMJ Open. 2019.PMID: 31594872Free PMC article.
Baptista S, Heleno B, Pinto M, Guimarães B, China D, Ramos JP, Teixeira A, Taylor KL, Martins C.Baptista S, et al. Among authors: martins c.BMJ Open. 2020 Mar 25;10(3):e034384. doi: 10.1136/bmjopen-2019-034384.BMJ Open. 2020.PMID: 32217563Free PMC article.