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.
Matthewman J, Mansfield KE, Hayes JF, Adesanya EI, Smith CH, Roberts A, Langan SM, Henderson AD.Matthewman J, et al. Among authors: langan sm.Clin Epidemiol. 2023 Aug 7;15:891-899. doi: 10.2147/CLEP.S417176. eCollection 2023.Clin Epidemiol. 2023.PMID: 37575973Free PMC article.
Langan SM, Benchimol EI, Guttmann A, Moher D, Petersen I, Smeeth L, Sørensen HT, Stanley F, Von Elm E.Langan SM, et al.Clin Epidemiol. 2013;5:29-31. doi: 10.2147/CLEP.S36885. Epub 2013 Feb 7.Clin Epidemiol. 2013.PMID: 23413321Free PMC article.No abstract available.
Hemkens LG, Benchimol EI, Langan SM, Briel M, Kasenda B, Januel JM, Herrett E, von Elm E.Hemkens LG, et al. Among authors: langan sm.J Clin Epidemiol. 2016 Nov;79:104-111. doi: 10.1016/j.jclinepi.2016.06.005. Epub 2016 Jun 23.J Clin Epidemiol. 2016.PMID: 27343981Free PMC article.
Ascott A, Mulick A, Yu AM, Prieto-Merino D, Schmidt M, Abuabara K, Smeeth L, Roberts A, Langan SM.Ascott A, et al. Among authors: langan sm.J Allergy Clin Immunol. 2019 May;143(5):1821-1829. doi: 10.1016/j.jaci.2018.11.030. Epub 2018 Dec 18.J Allergy Clin Immunol. 2019.PMID: 30576754Free PMC article.