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.
Rosenstiel SF, Denry IL, Zhu W, Gupta PK, Van der Sluys RA.Rosenstiel SF, et al.J Biomed Mater Res. 1993 Mar;27(3):415-7. doi: 10.1002/jbm.820270315.J Biomed Mater Res. 1993.PMID: 8360210