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.
Williams N, Jackson D, Lambert PC, Johnstone JM.Williams N, et al. Among authors: johnstone jm.BMJ. 1999 May 29;318(7196):1455.BMJ. 1999.PMID: 10346771Free PMC article.No abstract available.
Williams NM, Jackson D, Everson NW, Johnstone JM.Williams NM, et al. Among authors: johnstone jm.Ann R Coll Surg Engl. 1998 Mar;80(2):122-4.Ann R Coll Surg Engl. 1998.PMID: 9623378Free PMC article.
Williams NM, Johnstone JM, Everson NW.Williams NM, et al. Among authors: johnstone jm.J R Coll Surg Edinb. 1998 Dec;43(6):390-2.J R Coll Surg Edinb. 1998.PMID: 9990785