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.
Robinson M, Azimi-Sadjadi MR, Salazar J.Robinson M, et al.IEEE Trans Neural Netw. 2005 Mar;16(2):447-59. doi: 10.1109/TNN.2004.841805.IEEE Trans Neural Netw. 2005.PMID: 15787151Free article.