RETROSPECTIVE DIAGNOSTICS OF ACUTE CANINE HEPATITIS BASED ON LIVER ENZYMES LEVEL DURING CHRONIC HEPATITIS ArticleRodionov V.D., Landyshev N.N., Andreev P.S., Moroz S.E., Lutsenko A.M., Akhunov S.S., Galustov A.M.Colloquium-journal. 2019. С. 17-20