@article{ref1,
title="Avionics and airframe options: current usage and future plans",
journal="Air Medical Journal",
year="1994",
author="Mayfield, T. and Cady, G.",
volume="13",
number="1",
pages="21-23",
abstract="The 1994 Avionics and Airframe Survey was sent to 178 chief or lead pilots of helicopter emergency medical services (HEMS) programs in October 1993, and 100 (56%) were returned. Sixty-four programs (64%) reported that they operate one helicopter exclusively for EMS, 24 (24%) operate two, and 12 (12%) reported using three or more aircraft. Interestingly, the reported percentage of programs with two or more exclusive helicopters continues to rise, increasing by 5.6% to 36%.<p /><p>Language: en</p>",
language="en",
issn="1067-991X",
doi="",
url="http://dx.doi.org/"
}