Assessment of gastrointestinal pH, fluid and lymphoid tissue in the guinea pig, rabbit and pig, and implications for their use in drug development
Keywords: Gastrointestinal tract; Physiology; Anatomy; pH; Fluid volumes; Water content; Lymphoid follicles; Peyer's patches; Gut associated lymphoid tissue (GALT); Colonic vaccination; Pre-clinical studies; Rabbit; Guinea pig; Pig