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Br Med J 1897; 2 doi: https://doi.org/10.1136/bmj.2.1908.220 (Published 24 July 1897) Cite this as: Br Med J 1897;2:220This is a PDF-only article. The first page of the PDF of this article appears above.
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This is a PDF-only article. The first page of the PDF of this article appears above.