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Osler's triad

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The association of pneumonia, endocarditis, and meningitis. The triad was initially reported by the Austrian pathologist Richard Ladislaus Heschl (1824-1881) in 1862, and later by Osler in 1881.


  • W. Osler:
    Infectious (so-called ulcerative) endocarditis.
    The Archives of Medicine, New York, 1881, 5: 44.
We thank John Hrom, MD, for information submitted.

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