@article{ref1,
title="Medical and economical effectiveness of the sanatorium-preventorium treatment",
journal="Sovetskoe Zdravookhranenie",
year="1977",
author="Livshits, Z. I. and Abramov, B. E. and Kardashov, V. A.",
volume="",
number="5",
pages="50-52",
abstract="<p>[Abstract unavailable]</p><p>Language: ru</p>",
language="ru",
issn="0038-5239",
doi="",
url="http://dx.doi.org/"
}