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.
Hsu JL, Chen SH.Hsu JL, et al. Among authors: chen sh.Philos Trans A Math Phys Eng Sci. 2016 Oct 28;374(2079):20150364. doi: 10.1098/rsta.2015.0364.Philos Trans A Math Phys Eng Sci. 2016.PMID: 27644970Free PMC article.Review.