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.
Gateley CA, Lewis WG, Sturdy DE.Gateley CA, et al. Among authors: sturdy de.Br J Clin Pract. 1993 Sep-Oct;47(5):276-7.Br J Clin Pract. 1993.PMID: 8292483
Jalleh RP, Newman PL, Jenkins MT, Sturdy DE.Jalleh RP, et al. Among authors: sturdy de.Postgrad Med J. 1990 Oct;66(780):869-71. doi: 10.1136/pgmj.66.780.869.Postgrad Med J. 1990.PMID: 2099436Free PMC article.