TY JOUR TI Univentricular heart in a Maine Coon KW feline KW univentricular heart KW pulmonary hypertension KW malposition of the great arteries KW congenital heart disease KW echocardiography JO Russian veterinary journal AU Kadyrova, A.I. AU Kosenko, A.I. AU Illarionova, V.K. PY 2022 IS 2022 PB Publishing house "Logos Press"