@article{ref1,
title="Time lost by industrial workers from disabling sickness and accidents during the early days of disability",
journal="American journal of public health",
year="1939",
author="Gafafer, WM",
volume="29",
number="4",
pages="359-370",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0090-0036",
doi="",
url="http://dx.doi.org/"
}