In Polish Heart Journal (Kardiologia Polska), a document was published presenting the expert opinion of the Polish Cardiac Society, with Prof. UR K. Styczkiewicz as the first author: “Principles of primary prevention of cardiovascular diseases in patients with cancer. Expert opinion of the Prevention and Epidemiology Section (Cardio-Oncology Working Group) of the Polish Cardiac Society and the Cardio-Oncology Section of the Polish Cardiac Society".