Jonathan Elliott is Professor of Veterinary Clinical Pharmacology at the Royal Veterinary College. He is president of the European College of Veterinary Pharmacology and Toxicology.  He has been active in clinical research into feline chronic kidney disease and hypertension for 27 years and has published over 80 peer reviewed original research articles resulting from this research, receiving a number of national and international awards for his work. Harriet (Hattie) Syme is Professor of Small Animal Internal Medicine at the Royal Veterinary College. Her clinical and research interests are in the fields of nephrology, urology, endocrinology and systemic hypertension. She is head of the small animal internal medicine residency programme at the Queen Mother Hospital for Animals and has also mentored many PhD students working on clinical research projects conducted from two London-based first-opinion practices. Rosanne Jepson is Associate Professor of Small Animal Internal Medicine at the Royal Veterinary College. Her clinical and research interests include the pathophysiology, clinical diagnosis and management of both feline and canine hypertension together with a keen interest in both feline and canine nephrology.