Garden, O. A., Rutgers, H. C., Sorensen, S. H., Daniels, S., Walker, D., & Batt, R. M. Reference range and repeatability of a combined intestinal permeability and function test in clinically healthy Irish setter dogs. Research in Veterinary Science, 63(3), 257-261. https://doi.org/10.1016/s0034-5288%2897%2990030-8