@article{ref1,
title="Changing pattern of disease and disability in schoolchildren in England and Wales",
journal="British medical journal: BMJ",
year="1968",
author="Henderson, P.",
volume="2",
number="5601",
pages="329-334",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0959-8138",
doi="",
url="http://dx.doi.org/"
}