The 46 institutions of the Texas Medical Center are not-for-profits and dedicated to the highest standards of patient care, research, and education. These institutions include 14 renowned hospitals and two specialty institutions, three medical schools, six nursing schools, and schools of dentistry, public health, pharmacy, and virtually all health-related careers. It is where one of the first, and still the largest, air ambulance service was created; a very successful inter-institutional transplant program was developed; and more heart surgeries are performed than anywhere else in the world.