@article{ref1,
title="Positive cannabis results in urine and blood samples after consumption of hemp food products",
journal="Journal of analytical toxicology",
year="1998",
author="Alt, A. and Reinhardt, G.",
volume="22",
number="1",
pages="80-81",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0146-4760",
doi="",
url="http://dx.doi.org/"
}