Medtronic's cardiovascular therapies span the major specialties of interventional cardiology, cardiac surgery, and vascular surgery. Common uses include orthopedics, gastroenterology and cardiology. Pediatric cardiologists are pediatricians who specialize in cardiology. They generally work in in-patient facilities that include neonatology, nephrology, and cardiology units. It is performed by a physician trained in interventional cardiology. Astellas' franchise areas are urology, immunology (transplantation), cardiology, and infectious disease. Some may undergo further specialized training, such as in cardiology or oncology. Cardiac electrophysiology is a relatively young subdiscipline of cardiology and internal medicine. Helen B. Taussig is known as the founder of pediatric cardiology. At Harefield, he worked closely with Rosemary Radley-Smith, consultant in paediatric cardiology. Respiratory therapists are specialists and educators in many areas including cardiology, pulmonology, and sleep therapy. It is one of the most widely used diagnostic tests in cardiology. Jack Kayson is the chief of Cardiology and member of the hospital board. The National Institute of Preventive Cardiology is an affiliate of NUI Galway. Supari is a cardiology research specialist based in Jakarta.