Shepherd, R., Butler, D., Cutz, E., Gall, D., & Hamilton, J. (1979). The Mucosal Lesion in Viral Enteritis: Extent and Dynamics of the Epithelial Response to Virus Invasion in Transmissible Gastroenteritis of Piglets. Gastroenterology.

Shepherd, R.W., D.G Butler, E. Cutz, D.G Gall, and J.R Hamilton. "The Mucosal Lesion in Viral Enteritis: Extent and Dynamics of the Epithelial Response to Virus Invasion in Transmissible Gastroenteritis of Piglets." Gastroenterology 1979.

Shepherd, R.W., et al. "The Mucosal Lesion in Viral Enteritis: Extent and Dynamics of the Epithelial Response to Virus Invasion in Transmissible Gastroenteritis of Piglets." Gastroenterology 1979.