Introduction -- Definition of Celiac Disease and Gluten Sensitivity -- Epidemiology of Celiac Disease -- The Pathophysiology of Celiac Disease -- Immunogenetics of Celiac Disease -- Using Animal Models of Celiac Disease to Understand the Role of MHC II -- Role of Gut Microbes in Celiac Disease Risk and Pathogenesis -- Presentation of Celiac Disease in Children and Adults -- Diagnosis of Celia…