1. WHO global strategy for containment of antimicrobial resistance, 2001. http://www.who.int/csr/resources/publications/drugresist/en/EGlobal_Strat.pdf.
2. Commission Regulation 178/2002/EC of 28th January, laying down the general principles and requirements of food law, establishing the European Food Safety Authority and laying down procedures in matters of food safety, Off. J. Eur. Union L, 31, 2002.
3. Commission Regulation 378/2005/EC of 5th March, amending Regulation 1831/2003/EC on additives for use in animal nutrition, Off. J. Eur. Union L, 59, 2005.
4. Comment on: withdrawal of growth-promoting antibiotics in Europe and its effects in relation to human health