@article{ref1,
title="Botulinum toxin poisoning",
journal="Przeglad Epidemiologiczny",
year="1977",
author="Anusz, Z.",
volume="31",
number="1",
pages="71-74",
abstract="<p>[Abstract unavailable]</p><p>Language: pl</p>",
language="pl",
issn="0033-2100",
doi="",
url="http://dx.doi.org/"
}