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.
Vlassopoulos D, Sonikian M, Dardioti V, Pani I, Hadjilouka-Mantaka A, Hadjiconstantinou V.Vlassopoulos D, et al.Ren Fail. 2001 Nov;23(6):833-42. doi: 10.1081/jdi-100108195.Ren Fail. 2001.PMID: 11777323Free article.