title: An in vitro method for titration of diphtheria antitoxin on vero cells.
mesh_terms: D000818:Animals; D002478:Cells, Cultured; D002522:Chlorocebus aethiops; D004166:Diphtheria Antitoxin / Q000032:analysis*; D006168:Guinea Pigs
chemical_list: D004166:Diphtheria Antitoxin