Funding for this research was provided by:
Jane och Dan Olssons Stiftelse (2017-45)
Karolinska Institutet (2-3591/2014)
Text and Data Mining valid from 2020-01-06
Received: 7 August 2019
Revised: 4 November 2019
Accepted: 15 November 2019
First Online: 6 January 2020
Ethics approval and consent to participate
: The study was approved by the regional ethics committee of Karolinska Institutet, Stockholm, Sweden, and conducted in line with the Helsinki Declaration (ethical approval reference numbers DNR: 2015/367-31/4 and 2017/216-31). Written informed consent was obtained from all participating women.
: Not applicable.
: The authors declare that they have no competing interests.