Previous Article Next Article Table of Contents Science, Vol.342, No.6156, 314-315, 2013 DOI10.1126/science.1244656 Export Citation Probiotics: Finding the Right Regulatory Balance Hoffmann DE, Fraser CM, Palumbo FB, Ravel J, Rothenberg K, Rowthorn V, Schwartz J Please enable JavaScript to view the comments powered by Disqus.