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. 1940 Jan;2(1):22–29.

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Sir Patrick Manson

Robert Lucas Pitfield

Robert Lucas Pitfield, M.D.

¹Germantown, PA.

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¹

¹Germantown, PA.

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License, which permits non-commercial use and redistribution provided that the original author and source are credited.

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PMCID: PMC7942548 PMID: 33943770

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