Welcome to the BSAVA science webinar series – taking a closer look at some of the papers published in the Journal of Small Animal Practice (JSAP). In this webinar, Luisa Dormer and Nicola Di Girolamo are joined by Kieran Borgeat to discuss his paper Long-term biological variability and the generation of a new reference interval for plasma N-terminal pro-B-type natriuretic peptide in Labrador retrievers. This webinar outlines the research and discusses the practical application of this measurement in clinical practice.