title: Letter: Local immunity and ulcerative colitis.
mesh_terms: D000328:Adult; D000936:Antigen-Antibody Complex; D002446:Celiac Disease / Q000276:immunology; D003093:Colitis, Ulcerative / Q000276:immunology*; D003165:Complement System Proteins / Q000032:analysis*; D006801:Humans; D007070:Immunoglobulin A / Q000096:biosynthesis*; D007074:Immunoglobulin G / Q000096:biosynthesis*; D007413:Intestinal Mucosa / Q000276:immunology
chemical_list: D000936:Antigen-Antibody Complex; D007070:Immunoglobulin A; D007074:Immunoglobulin G; D003165:Complement System Proteins