SAS, a hereditary heart disease, is known to occur in the Golden Retriever breed. There is no registry for screenings for SAS, however, breeders have begun to have their dogs screened by Board-Certified Veterinary Cardiologists, and OFA is setting up a Heart Registry program as of mid-1996. The usual screening is auscultation (listening to the heart with a stethoscope). If there is any suspicion in the cardiologist’s mind, an echocardiogram is run to rule out any problems. The typical proof that a breeder has had their breeding stock screened for SAS is a letter signed by a Board-Certified Veterinary Cardiologist indicating that the animal is, in their opinion, free from SAS.