Place, Katariina
Rahkonen, Leena
Adler, Katti
Kruit, Heidi
Funding for this research was provided by:
University of Helsinki including Helsinki University Central Hospital
Article History
Received: 14 January 2023
Accepted: 30 April 2023
First Online: 13 May 2023
Declarations
:
: The study protocol was approved by the institutional review board (IRB) of the hospital region Helsinki and Uusimaa district, and the Ethics Committee for Obstetrics and Gynaecology (nr. HUS/3172/2018 and HUS/54/2019). Due to the retrospective nature of the study, written informed consent was waived by the IRB (HUS Regional Committee on Medical Research Ethics, Helsinki and Uusimaa) according to national legislation (Medical Research Act 488/1999, Ch.2a (23.4.2004/295), section 5 and 10a). All methods were carried out in accordance with the Declaration of Helsinki, relevant guidelines and regulations.
: Not applicable.
: The authors declare no competing interests.