title: [Automated microplate-photometry for titration of anti-diphtheria toxin by cell culture method and by enzyme-linked immunoassay].
mesh_terms: D000818:Animals; D002478:Cells, Cultured; D004166:Diphtheria Antitoxin / Q000032:analysis*; D004797:Enzyme-Linked Immunosorbent Assay; D006168:Guinea Pigs; D010783:Photometry / Q000379:methods*
chemical_list: D004166:Diphtheria Antitoxin