Tivers, M S, Lipscomb, V J, Scase, T J, Priestnall, S L, House, A K, Gates, H, Wheeler-Jones, C P D, Smith, K C, "Vascular Endothelial Growth Factor (VEGF) and VEGF Receptor Expression in Biopsy Samples of Liver from Dogs with Congenital Portosystemic Shunts", Journal of Comparative Pathology,