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.
de Paula VS, Razzera G, Barreto-Bergter E, Almeida FC, Valente AP.de Paula VS, et al. Among authors: valente ap.Structure. 2011 Jan 12;19(1):26-36. doi: 10.1016/j.str.2010.11.011.Structure. 2011.PMID: 21220113Free article.