Affiliation: | 1. Institute for Statistical and Epidemiological Cancer Research, Finnish Cancer Registry, Helsinki, Finland;2. Institute for Statistical and Epidemiological Cancer Research, Finnish Cancer Registry, Helsinki, Finland Information Services Department, Finnish Institute for Health and Welfare, Helsinki, Finland;3. Institute for Statistical and Epidemiological Cancer Research, Finnish Cancer Registry, Helsinki, Finland Faculty of Social Sciences, Tampere University, Tampere, Finland Faculty of Medicine, University of Helsinki, Helsinki, Finland;4. Information Services Department, Finnish Institute for Health and Welfare, Helsinki, Finland Department of Neurology, Care Science, and Society, Karolinska Institute, Stockholm, Sweden;5. Institute for Statistical and Epidemiological Cancer Research, Finnish Cancer Registry, Helsinki, Finland Dana-Farber Cancer Institute/Boston Children's Cancer and Blood Disorders Center, Harvard Medical School, Boston, Massachusetts Department of Pediatrics, University of Helsinki and Helsinki University Hospital, Helsinki, Finland |