Butyagin P. V. On changes in blood in horses immunized against diphtheria, dissertation for a degree of doctor of medicine In Russian (ask us if in doubt)/Butyagin P. V. Ob izmeneniyakh krovi u loshadey, immuniziruemykh protiv difterii, dissertatsiya na stepen doktora meditsiny Tomsk type. I.I. Makushin 1901. A.D. 6, A.D. 317 and A.D. 2. After graduating from Tomsk University in 1893, he organized under him (1895) the first station in Siberia for the production of diphtheria serum. SKUalb67e0f9adbeda35a3.