title: [Immunohistochemical study of secretory component, IgA and CEA in gastrointestinal lesions].
mesh_terms: D000230:Adenocarcinoma / Q000276:immunology; D002272:Carcinoembryonic Antigen / Q000032:analysis*; D006801:Humans; D007070:Immunoglobulin A / Q000032:analysis*; D007128:Immunoglobulin Fragments / Q000032:analysis*; D007413:Intestinal Mucosa / Q000276:immunology*; D007414:Intestinal Neoplasms / Q000276:immunology*; D012635:Secretory Component / Q000032:analysis*; D013274:Stomach Neoplasms / Q000276:immunology*
chemical_list: D002272:Carcinoembryonic Antigen; D007070:Immunoglobulin A; D007128:Immunoglobulin Fragments; D012635:Secretory Component