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Prevalence of and factors mediating HIV infection among sex workers in Lisbon, Portugal: the 5-year experience of a community organisation

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  • Contributors AA, AB and JC collected and analysed the data. ME was responsible for statistical programming. RF critically revised the manuscript and made valuable contributions. All authors were involved in research and in writing the manuscript. All authors agreed upon the final version.

  • Competing interests None.

  • Ethics approval The executive board of Positivo approved this study.

  • Provenance and peer review Not commissioned; internally peer reviewed.