@article{ref1,
title="Causes of blindness in Sweden",
journal="Acta ophthalmologica. Supplementum",
year="1969",
author="Lindstedt, E.",
volume="104",
number="",
pages="1-80",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0065-1451",
doi="",
url="http://dx.doi.org/"
}