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.
Jennings OG, Soeters RP, Tiltman AJ, van Wijk AL, Dehaeck K, Bloch B, Lombard CJ.Jennings OG, et al. Among authors: bloch b.S Afr Med J. 1992 Nov;82(5):351-4.S Afr Med J. 1992.PMID: 1448718
Soeters RP, Whittaker JA, Bloch B, Dehaeck CM.Soeters RP, et al. Among authors: bloch b.S Afr Med J. 1988 Jun 4;73(11):637-9.S Afr Med J. 1988.PMID: 3375926