
Keywords: Lymphoplasmacytic Sclerosing Pancreatitis; Idiopathic Duct-Centric Chronic Pancreatitis; IgG4-Related Disease; RituximabAIP, autoimmune pancreatitis; Breg, regulatory B cell; CFTR, cystic fibrosis transmembrane conductance regulator; GEL, granulocytic epi