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.
Cech EA, Blair-Loy M.Cech EA, et al.Proc Natl Acad Sci U S A. 2019 Mar 5;116(10):4182-4187. doi: 10.1073/pnas.1810862116. Epub 2019 Feb 19.Proc Natl Acad Sci U S A. 2019.PMID: 30782835Free PMC article.
Cech EA, Rothwell W.Cech EA, et al.J Eng Edu. 2018 Oct;107(4):583-610. doi: 10.1002/jee.20239. Epub 2018 Dec 7.J Eng Edu. 2018.PMID: 37786450Free PMC article.