BibTex format
@article{Ward:1999:10.1136/sti.75.5.340,
author = {Ward, H and Day, S and Weber, J},
doi = {10.1136/sti.75.5.340},
journal = {SEXUALLY TRANSMITTED INFECTIONS},
pages = {340--343},
title = {Risky business: health and safety in the sex industry over a 9 year period},
url = {http://dx.doi.org/10.1136/sti.75.5.340},
volume = {75},
year = {1999}
}