BibTex format
@article{Ustianowski:2005:10.1016/j.jinf.2004.07.006,
author = {Ustianowski, A and Shaffer, R and Collin, S and Wilkinson, RJ and Davidson, RN},
doi = {10.1016/j.jinf.2004.07.006},
journal = {JOURNAL OF INFECTION},
pages = {432--437},
title = {Prevalence and associations of vitamin D deficiency in foreign-born persons with tuberculosis in London},
url = {http://dx.doi.org/10.1016/j.jinf.2004.07.006},
volume = {50},
year = {2005}
}