Clinical progression of cats with early-stage chronic kidney disease fed diets with varying protein and phosphorus contents and calcium to phosphorus ratios. - Schauf S; Coltherd JC; Atwal J; Gilham M; Carvell-Miller LJ; Renfrew H; Elliott J; Elliott D; Bijsmans ES; Biourge VC; Watson P; Bakke AM (Journal of veterinary internal medicine, 2021)