1. Patent ductus arteriosus;Buchanan;Semin Vet Med Surg (Small Anim),1994
2. Patent ductus arteriosus morphology, pathogene-sis, types and treatment;Buchanan;J Vet Cardiol,2001
3. Hereditary patent ductus arteriosus and its sequelae in the dog;Patterson;Circ Res,1971
4. Morphology of the ductus arteriosus in fetal and neonatal dogs genetically predisposed to patent ductus arteriosus;Buchanan;Birth Defects: Original Articles Series,1978