1. UNAIDS. The gap report [ http://www.unaids.org/en/media/unaids/contentassets/documents/unaidspublication/2014/UNAIDS_Gap_report_en.pdf ]
2. UNAIDS. Sex work and HIV/AIDS [ http://data.unaids.org/publications/IRC-pub02/jc705-sexwork-tu_en.pdf ]
3. Rekart ML. Sex-work harm reduction. Lancet. 2005;366:2123–34.
4. UNAIDS. Guidance note on HIV and sex work [ http://www.unaids.org/en/media/unaids/contentassets/documents/unaidspublication/2009/JC2306_UNAIDS-guidance-note-HIV-sex-work_en.pdf ]
5. World Health Organization. Country cooperation strategy for the Lao People’s Democratic Republic 2012–2015 [ http://www.wpro.who.int/countries/lao/ccs_lao_en.pdf ]