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.
Martinez ME, Villa E, Vazquez Martul M, Sanchez-Cabezudo MJ, Sanchez JA, Villa JR.Martinez ME, et al.Nephron. 1993;65(1):36-9. doi: 10.1159/000187437.Nephron. 1993.PMID: 8413788