East Tennessee Heart Consultants, headquartered in Knoxville, Tenn., is a cardiac care center that offers health services, including diagnostic testing, surgical procedures and clinical research. The only cardiac services not offered by the hospital are heart transplants and pediatric cardiology. Clinical research allows patients to sample medications and procedures not yet approved for widespread use. The organization has several full time office locations in Knoxville, Maryville, Jefferson City, West Knoxville, Harriman, Morristown, Sevierville and Lenoir City, Tenn. It has outreach clinics in Athens, Claiborne County, Cocke County, Decatur, Etowah, Madisonville, Middlesboro and Oneida, Tenn. Founded in 1974, ETHC also operates a sleep center that conducts both night time and day time sleep studies.