PT - JOURNAL ARTICLE AU - André Almeida AU - Ana Brasileiro AU - Joana Costa AU - Mónica Eusébio AU - Ricardo Fernandes TI - Prevalence of and factors mediating HIV infection among sex workers in Lisbon, Portugal: the 5-year experience of a community organisation AID - 10.1136/sextrans-2014-051523 DP - 2014 Sep 01 TA - Sexually Transmitted Infections PG - 497--497 VI - 90 IP - 6 4099 - http://sti.bmj.com/content/90/6/497.short 4100 - http://sti.bmj.com/content/90/6/497.full SO - Sex Transm Infect2014 Sep 01; 90