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.
Johnson GR, Wen SF.Johnson GR, et al. Among authors: wen sf.J Am Soc Nephrol. 1995 Mar;5(9):1647-52. doi: 10.1681/ASN.V591647.J Am Soc Nephrol. 1995.PMID: 7780052