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. 1987 May;102(2):46–48.

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From Our Correspondents

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

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PMCID: PMC5113522 PMID: 28906750

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Articles from Bristol Medico-Chirurgical Journal are provided here courtesy of Bristol Medico Chirurgical Society

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