1. Transarterial ductal occlusion with the Amplatzer vascular plug in 31 dogs;Achen;Journal of Veterinary Internal Medicine,2008
2. Buchanan , J. W. 1999 Prevalence of cardiovascular disorders. 2nd edn P. Fox D. Sisson N. S. Moïse W. B. Saunders 457 470
3. Patent ductus arteriosus. Morphology, pathogenesis, types and treatment;Buchanan;Journal of Veterinary Cardiology,2001
4. Vertebral scale system to measure canine heart size in radiographs;Buchanan;Journal of American Veterinary Medical Association,1995
5. Etiology of patent ductus arteriosus in dogs;Buchanan;Journal of Veterinary Internal Medicine,2003