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2. Periodontal diagnosis and treatment - where does the future lie?;Chapple;Periodontol 2000,2009
3. FAO/WHO (2001) Health and nutritional properties of probiotics in food including powder milk with live Lactic Acid Bacteria. Report of a Joint FAO/WHO expert consultation on evaluation of health and nutritional properties of probiotics in food including powder milk with live lactic acid bacteria http://www.who.int/foodsafety/publications/fs_management/en/probiotics.pdf
4. Probiotics: do they have a role in oral medicine and dentistry?;Meurman;Eur J Oral Sci,2005
5. Probiotics: contributions to oral health;Meurman;Oral Dis,2007