Ivanela I. Kondova-Perseng, DVM, is Head of Division of Pathology and Microbiology and Head of the nonhuman primate tissue bank at the Biomedical Primate Research Centre (BPRC) in Rijswijk, The Netherlands. Her professional responsibilities include diagnostic and experimental pathology of nonhuman primates and laboratory animals. She is involved in projects for BPRC, the global pharmaceutical industry, the World Health Organization, and various academic institutions in Europe. Her primary research is related to animal models for infectious diseases, neurodegenerative conditions, evolutionary genetics, and comparative microbiome investigations.Keith G. Mansfield, DVM, ACVP, is the Director of Investigative Pathology at Novartis Institutes for Biomedical Research in Cambridge, MA, USA. Andrew D. Miller, DVM, Dipl. ACVP, is an Associate Professor of Pathology in the Section of Anatomic Pathology in the Department of Population Medicine and Diagnostic Sciences, Cornell University College of Veterinary Medicine, Ithaca, NY, USA. He focuses primarily on diagnostic pathology, comparative animal models of disease, and residency training, and has a diverse background in veterinary anatomic pathology, including nonhuman primate infectious disease and tumor pathobiology, comparative neuropathology, and veterinary diagnostic pathology. His current research interests include studying the pathogenesis and molecular targets of intracranial neoplasia, canine soft tissue sarcoma, focusing on aberrant protein expression as assessed by molecular, immunohistochemical, and image analysis. Additional research interests include understanding the role of tumor-associated inflammation in disease progression and prognosis in the dog.