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.
Sanders DS, Hurlstone DP, Stokes RO, Rashid F, Milford-Ward A, Hadjivassiliou M, Lobo AJ.Sanders DS, et al. Among authors: lobo aj.Postgrad Med J. 2002 Jan;78(915):31-3. doi: 10.1136/pmj.78.915.31.Postgrad Med J. 2002.PMID: 11796869Free PMC article.