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.
Diehl JT, Kaplan E, Dresdale AR, Kreis A, Konstam MA, Ross IM, Connolly RJ, Pandian NG, Aronovitz M, Payne DD, et al.Diehl JT, et al.Ann Thorac Surg. 1989 Dec;48(6):829-34. doi: 10.1016/0003-4975(89)90680-2.Ann Thorac Surg. 1989.PMID: 2596918