title: Tissue culture titration of low concentrations of diphtheria antitoxin.
mesh_terms: D000818:Animals; D001681:Biological Assay; D002417:Cattle; D002460:Cell Line; D046508:Culture Techniques; D004166:Diphtheria Antitoxin / Q000097:blood*; D000882:Haplorhini; D006801:Humans; D007668:Kidney; D008722:Methods; D011817:Rabbits
chemical_list: D004166:Diphtheria Antitoxin