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Bullowa JGM (1928). Use of antipneumococcic refined serum in lobar pneumonia: data necessary for a comparison between cases treated with serum and cases not so treated, and the importance of a significant control series of cases. JAMA 90: 1354-1358.
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JAMA for making a toll free link to the pdf of this article available (email to Iain Chalmers from Annette Flanagin, 29 August 2014).
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