title: Isolation of antigen 19/20 from the mite Dermatophagoides farinae by chromatography on the Mono S column.
mesh_terms: D000485:Allergens / Q000302:isolation & purification*; D000818:Animals; D000941:Antigens / Q000302:isolation & purification*; D002850:Chromatography, Gel; D002852:Chromatography, Ion Exchange; D007122:Immunoelectrophoresis; D007525:Isoelectric Focusing; D008925:Mites / Q000276:immunology*
chemical_list: D000485:Allergens; D000941:Antigens