1. Bondt N, Puister-Jansen LF, Ge L, van der Veen HB, Bergevoet RHM, et al.. (2012) Trends in veterinary antibiotic use in the Netherlands 2004–2012 (LEI 12-109). LEI of Wageningen UR, the Hague, the Netherlands. Available: http://www.wageningenur.nl/upload_mm/8/7/f/e4deb048-6a0c-401e-9620-fab655287fbc_Trends%20in%20use%202004-2012.pdf. Accessed 15 March 2013.
2. Farm factors associated with the use of antibiotics in pig production;HJ Van der Fels-Klerx;J Anim Science,2011
3. VANTURES, the Veterinary Antibiotic Usage and Resistance Surveillance Working Group (2009) Monitoring of antimicrobial resistance and antibiotic usage in animals in the Netherlands in 2006/2007 (MARAN-2007). (Mevius DJ, Wit B, Van Pelt W, eds) CVI of Wageningen UR, Lelystad, the Netherlands. Available: http://edepot.wur.nl/148647. Accessed 26 March 2013.
4. What do we feed to food-production animals? A review of animal feed ingredients and their potential impacts on human health;AR Sapkota;Environ Health Perspect,2007
5. World Health Organisation (2012) WHO fact sheet on antimicrobial resistance (194). Available: http://www.who.int/mediacentre/factsheets/fs194/en/index.html. Accessed 15 March 2013.