@article{ref1,
title="Setting behavioral limits",
journal="American journal of nursing",
year="1999",
author="Campbell, D. B. and Anderson, B. J.",
volume="99",
number="12",
pages="40-42",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-936X",
doi="",
url="http://dx.doi.org/"
}