@article{ref1,
title="Some data on the state of health of student graduates from different types of schools",
journal="Gigiena i Sanitariia",
year="1974",
author="Preobrazhenskaia, N. N.",
volume="39",
number="3",
pages="111-112",
abstract="<p>[Abstract unavailable]</p><p>Language: ru</p>",
language="ru",
issn="0016-9900",
doi="",
url="http://dx.doi.org/"
}