TY JOUR TI ON THE ISSUE OF ECG FEATURES IN HEART PATHOLOGIES IN DOGS KW endocardiosis KW mitral valve KW dilated cardiomyopathy KW electrocardiogram KW diagnostics KW pathology KW heart KW dogs JO Bulletin of KSAU AU Cheremenina, N.A. AU Veremeeva, S.A. PY 2022 IS 0 PB Krasnoyarsk State Agrarian University