1. Department of Nephrology/Hemodialysis Service of the Veterinary Medical Teaching Hospital, School of Veterinary Medicine, University of California–Davis, One Shields Avenue, Davis, California 95616; the
2. Section of Critical Care (Bandt, Rozanski, Shaw), Department of Clinical Sciences, Cummings School of Veterinary Medicine, Tufts University, 200 Westboro Road, North Grafton, Massachusetts 01536;
3. Medizinischen Tierklinik (Steinberg), Ludwig Maximiliam University of Munich, Munich, Germany 80539
4. From the