News-Gazette (June 23) – Dr. Jordan Vitt, a veterinary cardiologist at the University of Illinois Veterinary Teaching Hospital in Urbana, says the three types of congenital heart defects seen most often are patent ductus arteriosus, pulmonic stenosis and subaortic stenosis.
http://www.news-gazette.com/living/2019-06-24/pet-talk-tell-tale-murmur-puppies.html