The editors Steven L. Stockham, DVM, MS, Diplomate, American College of Veterinary Pathologists (Clinical Pathology), now deceased, was a Professor in the Department of Diagnostic Medicine/Pathobiology and Director of the Clinical Pathology Laboratory, College of Veterinary Medicine, Kansas State University, USA. Michael A. Scott, DVM, PhD, Diplomate, American College of Veterinary Pathologists (Clinical Pathology), is an Associate Professor Emeritus in the Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, USA.