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.
Leaf DA, Connor WE, Illingworth DR, Bacon SP, Sexton G.Leaf DA, et al. Among authors: illingworth dr.JAMA. 1989 Dec 8;262(22):3154-60.JAMA. 1989.PMID: 2681858Clinical Trial.
Nordøy A, Illingworth DR, Connor WE, Goodnight S Jr.Nordøy A, et al. Among authors: illingworth dr.Haemostasis. 1990;20(2):65-72. doi: 10.1159/000216110.Haemostasis. 1990.PMID: 2347517