AUTHOR=Kawasumi Koh , Kusaba Haruna , KUSABA AKIO TITLE=Study of age-related changes in plasma metabolites and enzyme activity of healthy small dogs that underwent medical checkups JOURNAL=Frontiers in Veterinary Science VOLUME=11 YEAR=2024 URL=https://www.frontiersin.org/journals/veterinary-science/articles/10.3389/fvets.2024.1437805 DOI=10.3389/fvets.2024.1437805 ISSN=2297-1769