Institute of Oncology Ljubljana is a public health institution providing health services on the secondary and tertiary levels as well as performing educational and research activities in oncology in Slovenia. It was founded in 1938. As a principal national institution, the Institute supervises programs on the comprehensive management of cancer diseases in terms of prevention, early detection, diagnostics, treatment and rehabilitation, research and education.
Its unit Epidemiology and Cancer Registry consists of the Cancer Registry of the Republic of Slovenia (established in 1950), the Hospital-Based Cancer Registry of the Institute of Oncology Ljubljana, the epidemiology unit, and screening units with the registries ZORA (national organised cervical cancer screening program) and DORA (national organized breast cancer screening program).