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.
Gibberd FB, Nicholls A, Dunne JF, Chaput de Saintonge DM.Gibberd FB, et al.Lancet. 1970 Feb 14;1(7642):360-1.Lancet. 1970.PMID: 4189615No abstract available.
Gibberd FB, Dunne JF, Handley AJ, Hazleman BL.Gibberd FB, et al.Br Med J. 1970 Jan 17;1(5689):147-9. doi: 10.1136/bmj.1.5689.147.Br Med J. 1970.PMID: 5413953Free PMC article.
Gibberd FB.Gibberd FB.Br Med J. 1969 Nov 1;4(5678):281-4. doi: 10.1136/bmj.4.5678.281.Br Med J. 1969.PMID: 4390562Free PMC article.No abstract available.
Gibberd FB.Gibberd FB.Br Med J. 1975 Nov 1;4(5991):270-2. doi: 10.1136/bmj.4.5991.270.Br Med J. 1975.PMID: 811306Free PMC article.No abstract available.