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.
Tran HV, Tran LD, Nguyen TN.Tran HV, et al. Among authors: tran ld.Mater Sci Eng C Mater Biol Appl. 2010 Jan 30;30(2):304-310. doi: 10.1016/j.msec.2009.11.008. Epub 2009 Nov 20.Mater Sci Eng C Mater Biol Appl. 2010.PMID: 30011621