Tumor-specific variables including data about survival will not be part of this database but will be transferred from the quality registries used within oncology. These quality registries are routinely used within oncology as part of the quality assurance of the care of these patients (the INCA-platform is used). The registries are handled by six Regional Cancer Centers (RCCs). Complete oncologic- and outcome data will be available for all types of cancer included in the study.