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.
Bell WR, Simon TL.Bell WR, et al.Am Heart J. 1982 Feb;103(2):239-62. doi: 10.1016/0002-8703(82)90498-7.Am Heart J. 1982.PMID: 7034515Review.No abstract available.
Sasahra AA, Bell WR, Simon TL, Stengle JM, Sherry S.Sasahra AA, et al. Among authors: bell wr.Thromb Diath Haemorrh. 1975 Jun 30;33(3):464-76.Thromb Diath Haemorrh. 1975.PMID: 1098216Clinical Trial.