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Authors
Kallionpää, Roope A. https://orcid.org/0000-0002-7512-2980
Johansson, Edvard
Böckerman, Petri https://orcid.org/0000-0002-5372-2985
Peltonen, Juha https://orcid.org/0000-0002-5732-4167
Peltonen, Sirkku https://orcid.org/0000-0003-0990-1430
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Funding
Funding for this research was provided by:
Syöpäsäätiö
Turun Yliopistollinen Keskussairaala
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Article History
Received: 13 December 2022
Revised: 24 May 2023
Accepted: 29 June 2023
First Online: 18 July 2023
Competing interests
: The authors declare no competing interests.
: The Ethics Committee of the Hospital District of Southwest Finland approved the study. Research permissions were obtained from the Finnish Institute for Health and Welfare, the Social Insurance Institution of Finland, the Finnish Population Register Centre, Statistics Finland, and all participating hospitals. The study followed the principles of the Declaration of Helsinki. The study was register-based and retrospective and therefore exempt from obtaining informed consent from the participants. All analyses were carried out using pseudonymized data.
