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.
Wolfe JE, Bone RC, Ruth WE.Wolfe JE, et al. Among authors: bone rc.Am J Med. 1977 Nov;63(5):719-22. doi: 10.1016/0002-9343(77)90157-7.Am J Med. 1977.PMID: 930946
Weinstein HJ, Bone RC, Ruth WE.Weinstein HJ, et al. Among authors: bone rc.Chest. 1977 Nov;72(5):583-7. doi: 10.1378/chest.72.5.583.Chest. 1977.PMID: 913135