BibTex format
@article{Risley:2007:10.1136/sti.2007.026021,
author = {Risley, CL and Ward, H and Choudhury, B and Bishop, CJ and Fenton, KA and Spratt, BG and Ison, CA and Ghani, AC},
doi = {10.1136/sti.2007.026021},
journal = {SEXUALLY TRANSMITTED INFECTIONS},
pages = {481--487},
title = {Geographical and demographic clustering of gonorrhoea in London},
url = {http://dx.doi.org/10.1136/sti.2007.026021},
volume = {83},
year = {2007}
}