1. United Nations Office on Drugs and Crime. United Nations Convention Against Transnational Organized Crime and the Protocols Thereto. Annex II: Protocol to prevent, suppress and punish trafficking in persons, especially women and children, supplementing the United Nations convention against Transnational Organized Crime. United Nations, New York, 2004. Available at https://www.unodc.org/documents/middleeastandnorthafrica/organised-crime/UNITED_NATIONS_CONVENTION_AGAINST_TRANSNATIONAL_ORGANIZED_CRIME_AND_THE_PROTOCOLS_THERETO.pdf . Accessed 10/05/2015.
2. International Labor Organization. Profits and poverty; the economics of forced labor. International Labor Office, Geneva: ILO, 2014. Available at www.ilo.org . Accessed 08/30/2015.
3. The Walk Free Foundation Ltd. The global slavery index 2014. Available at www.globalslaveryindex.org . Accessed 08/30/2015.
4. Polaris. Human trafficking: the victims. Available at http://www.polarisproject.org/human-trafficking/overview . Accessed 10/05/2015.
5. Baldwin SB, Eisenman DP, Sayles JN, Ryan G, Chuang KS. Identification of human trafficking victims in health care settings. Health Hum Rights. 2011;13:E36–49.