*[http://www.ivis.org/advances/Disease_Factsheets/epsilon_toxin_clostridium.pdf The Center for Food Security and Public Health Animal Disease Factsheet: Epsilon toxin of ''Clostridium perfringens''.] | *[http://www.ivis.org/advances/Disease_Factsheets/epsilon_toxin_clostridium.pdf The Center for Food Security and Public Health Animal Disease Factsheet: Epsilon toxin of ''Clostridium perfringens''.] |