@article{ref1,
title="The prevention of cerebral palsy",
journal="Developmental medicine and child neurology",
year="1971",
author="Mitchell, R. G.",
volume="13",
number="2",
pages="137-146",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0012-1622",
doi="",
url="http://dx.doi.org/"
}