A TRIAL OF DEVELOPING A SIMPLE TECHNIQUE OF TITRATING DIPHTHERIA TOXIN ON CULTURES OF EMBRYONIC GUINEA PIG CELLS WITH THE "PLAQUE" TECHNIQUE.
D000818:Animals; D004167:Diphtheria Toxin; D006168:Guinea Pigs; D007159:Immunologic Tests; D008853:Microscopy; D008858:Microscopy, Phase-Contrast; D058226:Plaque, Atherosclerotic; D012106:Research; D046509:Tissue Culture Techniques
D004167:Diphtheria Toxin
DIPHTHERIA TOXIN; EXPERIMENTAL LAB STUDY; GUINEA PIGS; MICROSCOPY, PHASE CONTRAST; TISSUE CULTURE