title: Problems in the use of the in vitro toxigenicity test for Corynebacterium diphtheriae.
mesh_terms: D000992:Antitoxins / Q000592:standards*; D001431:Bacteriological Techniques / Q000592:standards*; D003353:Corynebacterium diphtheriae / Q000472:pathogenicity*; D006801:Humans; D008722:Methods
chemical_list: D000992:Antitoxins