Thomayer University Hospital, Thomayer University Hospital, Charles University, Masaryk Memorial Cancer Institute, Institute of Health Information and Statistics of the Czech Republic, Masaryk University - Institute of Biostatistics and Analyses, Ministry of Health of the Czech Republic, Ministry of Health of the Czech Republic, University Hospital Olomouc, Masaryk Hospital, Charles University, University Hospital Motol, University Hospital Motol, Jihlava Hospital, Masaryk University and Ministry of Health of the Czech Republic