@Article{Knapik2011,
journal="Kardiochirurgia i Torakochirurgia Polska/Polish Journal of Thoracic and Cardiovascular Surgery",
issn="1731-5530",
volume="8",
number="4",
year="2011",
title="Komentarz",
author="Knapik, Piotr",
pages="464--465",
url="https://www.termedia.pl/Komentarz,40,17990,1,1.html"
}