1. Deaths involving Clostridium difficile: England and Wales 2008;Office of National Statistics;Stat Bull,2009
2. Deaths involving Clostridium difficile: England and Wales, 1999–2004;Office of National Statistics;Health Stat Q,2004
3. Antibiotics and hospital-acquired Clostridium difficile-associated diarrhoea: a systematic review;Thomas;J. Antimicrob Chemother,2003
4. What are antimicrobial pesticides?;US EPA,2006
5. DIS/TSS-9 efficacy data requirements;US EPA,2008