1. Human trafficking and exploitation: A global health concern
2. Human trafficking and health: a cross-sectional survey of NHS professionals’ contact with victims of human trafficking
3. ILO. Global estimates of modern slavery: Forced labour and forced marriage. 2017. www.ilo.org/global/topics/forced-labour/publications/WCMS_586127/lang-en/index.htm.
4. Cooper C, Hesketh O, Ellis N, Fair A. A typology of modern slavery offences in the UK. 2017. Home Office. www.gov.uk/government/uploads/system/uploads/attachment_data/file/652652/typology-modern-slavery-offences-horr93.pdf.
5. United Nations Office on Drugs and Crime. Optional protocol to prevent, suppress and punish trafficking in persons, especially women and children, supplementing the United Nations Convention Against Transnational Organized Crime. 2000. United Nations. www.unodc.org/documents/middleeastandnorthafrica/organised-crime/UNITED_NATIONS_CONVENTION_AGAINST_TRANSNATIONAL_ORGANIZED_CRIME_AND_THE_PROTOCOLS_THERETO.pdf.