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.
Charalambous R, Narayan E.Charalambous R, et al. Among authors: narayan e.J Vis Exp. 2019 Aug 23;(150). doi: 10.3791/59216.J Vis Exp. 2019.PMID: 31498324