#The Center for Food Security and Public Health, Iowa State University (2004) [http://www.ivis.org/advances/Disease_Factsheets/epsilon_toxin_clostridium.pdf Animal Disease Factsheet: Epsilon toxin of Clostridium Perfringens.]
#The Center for Food Security and Public Health, Iowa State University (2004) [http://www.ivis.org/advances/Disease_Factsheets/epsilon_toxin_clostridium.pdf Animal Disease Factsheet: Epsilon toxin of Clostridium Perfringens.]
#Songer, J G (1998) Clostridial diseases of small ruminants. ''Veterinary Research'', '''29''', 219-232.
#Songer, J G (1998) Clostridial diseases of small ruminants. ''Veterinary Research'', '''29''', 219-232.
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#Van Metre (2006) Clostridial Infections of the Ruminant GI Tract. ''Proceedings of the North American Veterinary Conference 2006''