Jansen, B.C.; Clark, R.; Louw, J.G.; De Kock, V.E.; Alexander, R.A.
(Pretoria : The Government Printer, 1961)
Evidence is provided to prove the specificity of the flocculation test used as a tool for assaying the beta fraction of Cl. welchii Type B toxin and its corresponding antitoxin.
The separation from Cl. welchii Type B ...