@article{ref1,
title="Bezoars in children",
journal="Pediatriia",
year="1973",
author="Protopopov, A. N. and Iudina, T. V.",
volume="52",
number="7",
pages="81-83",
abstract="<p>[Abstract unavailable]</p><p>Language: ru</p>",
language="ru",
issn="0031-403X",
doi="",
url="http://dx.doi.org/"
}