1. Probiotics in Perspective
Fergus Shanahan 
Gastroenterology 
Volume 139, Issue 6, Pages (December 2010)
DOI: /j.gastro
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2. Figure 1
Mechanisms of probiotic action: within the lumen, at the mucosal surface, and by stimulation of innate and acquired immunity. The predominant mechanism varies among different probiotic strains and is dependent on the clinical indication.
Gastroenterology  , DOI: ( /j.gastro )
Copyright © 2010 AGA Institute Terms and Conditions

3. Figure 2
Importance of biodiversity within the gut. In contrast to a low microbial diversity, a high microbial biodiversity provides optimal input to the developing digestive and immune systems and maximal competitive advantage against potential pathogenic challenge.
Gastroenterology  , DOI: ( /j.gastro )
Copyright © 2010 AGA Institute Terms and Conditions