@article{ref1,
title="Spontaneous removal of a bullet from the left lung with complete recovery",
journal="Grudnaia Khirurgiia (Moscow, Russia)",
year="1972",
author="Voropaev, M. M. and Sarkisov, D. S. and Adamian, A. A.",
volume="14",
number="4",
pages="107-108",
abstract="<p>[Abstract unavailable]</p><p>Language: ru</p>",
language="ru",
issn="0017-4866",
doi="",
url="http://dx.doi.org/"
}