title: Understanding immunoglobulin A.
mesh_terms: D004064:Digestive System / Q000276:immunology; D006801:Humans; D007110:Immunity, Active; D007112:Immunity, Maternally-Acquired; D007070:Immunoglobulin A / Q000032:analysis*; D007136:Immunoglobulins / Q000145:classification; D007153:Immunologic Deficiency Syndromes / Q000276:immunology; D008970:Molecular Weight; D009092:Mucous Membrane / Q000276:immunology; D012137:Respiratory System / Q000276:immunology
chemical_list: D007070:Immunoglobulin A; D007136:Immunoglobulins