@article{ref1,
title="Are little leagues good for children?",
journal="Pennsylvania medical journal",
year="1956",
author="Shaffer, T. E.",
volume="59",
number="4",
pages="447-450",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0096-0667",
doi="",
url="http://dx.doi.org/"
}