@article{ref1,
title="Use of back belts to prevent occupational low-back pain. Recommendation statement from the Canadian Task Force on Preventive Health Care",
journal="CMAJ : Canadian Medical Association journal",
year="2003",
author="Canadian Task Force on Preventive Health Care, ",
volume="169",
number="3",
pages="213-214",
abstract="Abstract unavailable.",
language="",
issn="0820-3946",
doi="",
url="http://dx.doi.org/"
}