Knauer, K W Diagnosos of an interventricular septal defect in a horse. [electronic resource] - Veterinary medicine, small animal clinician : VM, SAC Jan 1973 - 75-8 p. digital Publication Type: Journal Article ISSN: 0042-4889 Subjects--Topical Terms: AnimalsCardiac Catheterization--veterinaryElectrocardiography--veterinaryFemaleHeart Septal Defects, Ventricular--diagnosisHorse Diseases--diagnosisHorses