@article{ref1,
title="Paraquat poisoning",
journal="Postgraduate medical journal",
year="1969",
author="Hargreave, T. B. and Gresham, G. A. and Karayannopoulos, S.",
volume="45",
number="527",
pages="633-635",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0032-5473",
doi="",
url="http://dx.doi.org/"
}