Manhouri, H. , , Sadegh, A. , and Mahinpour, M. . "Horse serum purification residue as a nitrogen source for the growth of microorganisms, II-Corynebacterium diphtheria (Toxin Production)", Archives of Razi Institute, 18, 1, 1966, 39-42. doi: 10.22092/ari.1966.108564