@article{ref1,
title="The causes of severe visual handicap among schoolchildren in South Australia",
journal="Medical journal of Australia",
year="1968",
author="Fraser, G. R.",
volume="1",
number="15",
pages="615-620",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0025-729X",
doi="",
url="http://dx.doi.org/"
}