@article{ref1,
title="Letter: Winter baby--a late walker",
journal="Pediatrics",
year="1975",
author="Beargie, R. A.",
volume="55",
number="2",
pages="299-299",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0031-4005",
doi="",
url="http://dx.doi.org/"
}