title: Sera from breast cancer patients contain an IgA antibody to a breast cyst fluid component.
mesh_terms: D000818:Animals; D000951:Antigens, Neoplasm; D001666:Binding Sites, Antibody; D001941:Breast Diseases / Q000276:immunology*; D001943:Breast Neoplasms / Q000276:immunology* / Q000601:surgery; D005260:Female; D005348:Fibrocystic Breast Disease / Q000276:immunology* / Q000601:surgery; D006801:Humans; D007070:Immunoglobulin A / Q000096:biosynthesis*; D007074:Immunoglobulin G / Q000096:biosynthesis; D008324:Mammary Tumor Virus, Mouse / Q000276:immunology; D008408:Mastectomy; D051379:Mice
chemical_list: D000951:Antigens, Neoplasm; D007070:Immunoglobulin A; D007074:Immunoglobulin G