@article{ref1,
title="Violence by clients towards female prostitutes in different work settings: questionnaire survey",
journal="British medical journal: BMJ",
year="2001",
author="Hart, G. and Barnard, M. and Henderson, M. and Church, S.",
volume="322",
number="7285",
pages="524-525",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0959-8138",
doi="",
url="http://dx.doi.org/"
}