@article{ref1,
title="Merchant shipping. Standard of rejection for colour-blindness in seamen",
journal="British journal of ophthalmology",
year="1922",
author="Edridge-Green, F. W.",
volume="6",
number="3",
pages="126-128",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0007-1161",
doi="",
url="http://dx.doi.org/"
}