Toijonen, Anna http://orcid.org/0000-0002-4812-2766
Heinonen, Seppo
Gissler, Mika
Seikku, Laura
Macharey, Georg
Funding for this research was provided by:
University of Helsinki including Helsinki University Central Hospital
Article History
Received: 6 May 2021
Accepted: 13 July 2021
First Online: 31 October 2021
Declarations
:
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants performed by any of the authors.
: The register-keeping organizations gave their permission to use their confidential health data in this study. No registered persons were contacted and thus, no consent for the participant was needed. The Finnish Institute for Health and Welfare authorized to use the data (reference number THL/652/5.05.00/2017).