@article{ref1,
title="Isolated avulsion of the gallbladder in a child",
journal="Klinichna khirurhiia",
year="1990",
author="Koval'kov, V. F. and Snitkin, N. A.",
volume="",
number="6",
pages="53-53",
abstract="<p>[Abstract unavailable]</p> <p>Language: ru</p>",
language="ru",
issn="0023-2130",
doi="",
url="http://dx.doi.org/"
}