@article{ref1,
title="The physician's associate-a task analysis",
journal="American journal of public health",
year="1973",
author="Braun, J. A. and Howard, D. R. and Pondy, L. R.",
volume="63",
number="12",
pages="1024-1028",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0090-0036",
doi="",
url="http://dx.doi.org/"
}