@article{ref1,
title="Fractures in brittle bone diseases",
journal="Orthopedic clinics of North America",
year="1972",
author="Mitchell, D. C.",
volume="3",
number="3",
pages="787-792",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0030-5898",
doi="",
url="http://dx.doi.org/"
}