Since its establishment in 2005, Hamburg's Martini Klinik had single-mindedly focused on prostate cancer care with a commitment to measure long term health outcomes for every patient. A wholly owned subsidiary of the University Hospital Hamburg, Martini Klinik was a "hospital in a hospital" in close proximity to other medical departments and services. By 2019, Martini Klinik had become the largest prostate cancer treatment program in the world with 8,000 outpatient cases and more than 2,500 surgical cases annually. Patients came from all over Germany and from around the world. A new and expanded facility was under construction to have the capacity to manage more patients with prostate cancer.