Association between avian necrotic enteritis and Clostridium perfringens strains expressing NetB toxin Anthony L. Keyburn, Xu-Xia Yan, Trudi L. Bannam, Filip Van Immerseel, Julian I. Rood and Robert J. MooreVet. Res., 41 2 (2010) 21DOI: https://doi.org/10.1051/vetres/2009069