@article{ref1,
title="Further observations on paraquat oiisoning in man",
journal="American educational research journal",
year="1974",
author="Ramachandran, S. and Rajapakse, C. N. and Perera, M. V.",
volume="4",
number="3",
pages="257-266",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-8312",
doi="",
url="http://dx.doi.org/"
}