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.
Klomp DW, Renema WK, van der Graaf M, de Galan BE, Kentgens AP, Heerschap A.Klomp DW, et al.Magn Reson Med. 2006 Feb;55(2):271-8. doi: 10.1002/mrm.20745.Magn Reson Med. 2006.PMID: 16372278Free article.