title: Immunological characterization of blood group A reactive protectins from Helix pomatia.
mesh_terms: D000017:ABO Blood-Group System; D000418:Albumins / Q000032:analysis*; D000818:Animals; D000937:Antigen-Antibody Reactions; D001789:Blood Group Antigens; D011232:Chemical Precipitation; D005577:Forssman Antigen; D005612:Freeze Drying; D006801:Humans; D007106:Immune Sera / Q000032:analysis; D007122:Immunoelectrophoresis; D011817:Rabbits / Q000276:immunology; D012661:Semen / Q000276:immunology; D012908:Snails / Q000276:immunology*
chemical_list: D000017:ABO Blood-Group System; D000418:Albumins; D001789:Blood Group Antigens; D007106:Immune Sera; D005577:Forssman Antigen