title: Adsorption titration as a specific semi-quantitative assay for soluble and bound Paramecium serotypic antigen.
mesh_terms: D000327:Adsorption; D000941:Antigens / Q000032:analysis*; D007103:Immobilization; D005779:Immunodiffusion; D008854:Microscopy, Electron; D010247:Paramecium / Q000276:immunology*; D013501:Surface-Active Agents; D014461:Ultracentrifugation
chemical_list: D000941:Antigens; D013501:Surface-Active Agents