Harrison's İç Hastalıkları 19th edition has a significant impact on medical education and the healthcare system in Turkey. As a primary textbook for internal medicine courses, it helps standardize medical education across the country, ensuring that medical students and residents receive a comprehensive and consistent education in internal medicine. Furthermore, the book's emphasis on evidence-based medicine and best practices contributes to the development of a well-informed and skilled medical workforce, ultimately leading to improved patient outcomes and a more efficient healthcare system.