@article{ref1,
title="Signal system for ambulance-to-hospital communication",
journal="EMT journal",
year="1978",
author="Shapiro, R. A. and Farrell, A. and Hallinan, J. and Large, C. and Raynes, R.",
volume="2",
number="1",
pages="73-74",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="",
doi="",
url="http://dx.doi.org/"
}