title: [Serum levels of CA19-9 in various diseases of digestive system and its clinical significance].
mesh_terms: D000911:Antibodies, Monoclonal / Q000276:immunology*; D000951:Antigens, Neoplasm / Q000032:analysis*; D004067:Digestive System Neoplasms / Q000276:immunology; D006801:Humans; D010190:Pancreatic Neoplasms / Q000276:immunology*
chemical_list: D000911:Antibodies, Monoclonal; D000951:Antigens, Neoplasm