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Authors
Kantomaa, Tiina
Vääräsmäki, Marja
Gissler, Mika
Ryynänen, Markku
Nevalainen, Jaana
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Funding
Funding for this research was provided by:
University of Oulu
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Article History
Received: 5 May 2024
Accepted: 26 August 2024
First Online: 6 September 2024
Declarations
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: According to the Finnish Act on Secondary Use of Health and Social Data 552/2019, the study participants did not need to provide an information consent form when using anonymous register data only used. The study was approved by the Institutional Ethics Committee of Northern Ostrobothnia Hospital District (EETTMK:99/2018) and the Finnish Institute for Health and Welfare gave their permission for the use of the MBR data (THL/1624/5.05.00/2018).
: Not applicable.
: The authors declare no competing interests.
