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.
Billing JS, Ooi A, Large SR.Billing JS, et al. Among authors: large sr.Interact Cardiovasc Thorac Surg. 2003 Sep;2(3):369-72. doi: 10.1016/S1569-9293(03)00083-5.Interact Cardiovasc Thorac Surg. 2003.PMID: 17670073
Yeatman M, Smith JA, Dunning JJ, Large SR, Wallwork J.Yeatman M, et al. Among authors: large sr.Cardiovasc Surg. 1995 Feb;3(1):1-14. doi: 10.1016/0967-2109(95)92894-n.Cardiovasc Surg. 1995.PMID: 7780701Review.