@article{ref1,
title="Playpens",
journal="Health visitor",
year="1988",
author="Hadoke, J.",
volume="61",
number="4",
pages="115-115",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0017-9140",
doi="",
url="http://dx.doi.org/"
}