DORA is the National Breast Cancer Screening Programme organised by the Institute of Oncology Ljubljana in cooperation with the Ministry of Health and the Health Insurance Institute of Slovenia. DORA operates in accordance with the European guidelines for guaranteeing the quality of breast cancer screening and diagnostics. The programme provides treatment for women between the ages of 50 and 69, who are invited to undergo preventive mammography every two years. The objective of the DORA programme is to decrease the breast cancer mortality rate in the examined group of women by 25–30%. The strategic objectives of the programme are also defined in the DORA 2015–2020 Strategic Plan, and the measures for their fulfilment are defined in greater detail in its appendices (mainly in the 2015–2020 DORA Programme Expansion Plan).