1. Deloitte 2013 Economic Impact of British Racing 2013 http://www.deloitte.com/view/en_GB/uk/industries/sportsbusinessgroup/sports/horseracing/3c332287681a5210VgnVCM200000bb42f00aRCRD.htm
2. Weatherbys 2008 Identification of Horses 2008 https://www.weatherbys.co.uk/sites/default/files/Identification%20of%20Horses%20Booklet.pdf
3. Pharmacokinetic/pharmacodynamic approach to assess irrelevant plasma or urine drug concentrations in postcompetition samples for drug control in the horse;Toutain;Equine Veterinary Journal,2002
4. British Horseracing Authority 2013 Testing Procedure http://www.britishhorseracing.com/resource-center/anti-doping-medication-control/testing-procedures/