Clinical and diagnostic services provided by the San Raffaele are structured as Departments and Services. They include most medical and surgical disciplines, ranging from Internal Medicine to General Surgery, Cardiovascular and Thoracic Surgery, Neurological Surgery, Neurology, Urology, Obstetrics and Gynecology, Orthopedics, Pediatrics and Ophthalmology. A fully equipped Emergency Room, associated to an intensive care unit, is operated on a rotational basis by staff clinicians, and is prepared to treat any medical or surgical emergency. Professionals operating in clinical Departments and Divisions include the Division Chief, senior registrars, registrars, head nurses, professional nurses and assistant technicians (OTA), together with auxiliary personnel and administrators. In addition to qualified medical staff, diagnostic and rehabilitation services comprise specialised technical personnel including head technicians, radiology technicians and laboratory technicians.