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.
Alvarez-Ramirez J, Rodriguez E, Echeverria JC.Alvarez-Ramirez J, et al.Phys Rev E Stat Nonlin Soft Matter Phys. 2009 May;79(5 Pt 2):057202. doi: 10.1103/PhysRevE.79.057202. Epub 2009 May 20.Phys Rev E Stat Nonlin Soft Matter Phys. 2009.PMID: 19518601