Canis ISSN: 2398-2942 WSAVA Gastrointestinal Guidelines Guidelines Guidelines The WSAVA International Gastrointestinal Standardization Group: R J Washabau, M J Day, M D Willard, E J Hall, A E Jergens, J Mansell, T, Minami, & T W Bilzer (2010) Endoscopic, Biopsy, and Histopathologic Guidelines for the Evaluation of Gastrointestinal Inflammation in Companion Animals. J Vet Intern Med 24, 10-26 (Full Article). Standardized GI Endoscopy Reporting Forms Upper GI Endoscopy Report Form (PDF). Lower GI Endoscopy Report Form (PDF). These forms have been officially endorsed by the Comparative Gastroenterology Society (CGS) and the European Society of Comparative Gastroenterology (ESCG). Gastrointestinal Guidelines can be viewed at: https://wsava.org/global-guidelines/gastrointestinal-guidelines/.