Gomart, S, Allaway, D, Harrison, M, Dickson, D, Seo, J, Ferasin, L, Payne, J R, Hezzell, M J, Borgeat, K, "Long‐term biological variability and the generation of a new reference interval for plasma N‐terminal pro‐B‐type natriuretic peptide in Labrador retrievers", JOURNAL OF SMALL ANIMAL PRACTICE, 2020