@article{ref1,
title="The "invisible" can top",
journal="British journal of radiology",
year="1977",
author="Levick, R. K. and Spitz, L.",
volume="50",
number="596",
pages="594-596",
abstract="The hazard of ingestion of a beverage can top in a child is presented. These can tops are susprisingly low radio density and their presence can be overlooked on a conventional P.A. X ray of the chest. In such cases a lateral radiograph of the chest should be included in the routine investigation of the child.<p /><p>Language: en</p>",
language="en",
issn="0007-1285",
doi="",
url="http://dx.doi.org/"
}