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Correspondence

THE COLOUR VISION TESTS OF THE BOARD OF TRADE

Br Med J 1913; 2 doi: https://doi.org/10.1136/bmj.2.2748.580-a (Published 30 August 1913) Cite this as: Br Med J 1913;2:580

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Usage statistics: September 2009 to May 2018

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AbstractFullPdf
Sep 2009001
Jun 2014001
Jul 2014002
Nov 2015002
May 2018001
Total007