@article{ref1,
title="Allergenic extracts: a review of their safety and efficacy",
journal="Annals of allergy",
year="1984",
author="Schaeffer, M. and Sisk, L. C.",
volume="52",
number="1",
pages="2-14",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0003-4738",
doi="",
url="http://dx.doi.org/"
}