@article{ref1,
title="Symptoms of shellfish poisoning",
journal="New England journal of medicine",
year="1977",
author="Blanc, M. H. and Zwahlen, A. and Robert, M.",
volume="296",
number="5",
pages="287-288",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-4793",
doi="",
url="http://dx.doi.org/"
}