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. 1808 May;19(111):434–436.

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Dr. Walker, on Vaccination

John Walker

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This work is free of known copyright restrictions. For more information, please see PMC Back Issue Digitization.

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PMCID: PMC5689355 PMID: 30492402

This article has been corrected. See Med Phys J. 1808 May;19(111):480.

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