@article{ref1,
title="Studies of fatigue of hospital nurses due to shift work--with special reference to night shifts and short off-duty (author's transl)",
journal="Sangyo Igaku",
year="1978",
author="Matsumoto, K. and Sasagawa, N. and Kawamori, M.",
volume="20",
number="2",
pages="81-93",
abstract="<p>[Abstract unavailable]</p><p>Language: ja</p>",
language="ja",
issn="0047-1879",
doi="",
url="http://dx.doi.org/"
}