@article{ref1,
title="Pediatric evaluation of play",
journal="Pediatria de Las Américas",
year="1951",
author="Escardo, F.",
volume="9",
number="6",
pages="276-288",
abstract="<p>[Abstract unavailable]</p> <p>Language: un</p>",
language="un",
issn="",
doi="",
url="http://dx.doi.org/"
}