Correction: Biomarkers of Probiotic Therapy in Ulcerative Colitis: A Systematic Review of Mechanisms Underlying Remission

Several studies cited in this article assessed a probiotic formulation previously known as VSL#3. The probiotic formulation that was assessed in these studies is now known by the generic name 'De Simone Formulation'. The current product known as VSL#3 is not the same formulation as the De Simone Formulation. The De Simone Formulation is available under the brand names Visbiome (USA) and Vivomixx (Europe).