1. Clinical gastroenterology. A practical problem-based approach. 2nd edn;Talley,2006
2. Clinical gastroenterology. A practical problem-based approach. 2nd edn;Talley,2006
3. General practice. 3rd edn;Murtagh,2007
4. Probiotics for treating infectious diarrhoea;Allen;Cochrane Database Syst Rev,2004
5. Probiotics in prevention of antibiotic-associated diarrhoea: meta-analysis;D'Souza;BMJ,2002