Funding for this research was provided by:
Marianne and Marcus Wallenberg Foundation
Received: 26 September 2017
Accepted: 17 January 2019
First Online: 29 January 2019
Ethics approval and consent to participate
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Written consent was obtained from all the participating women. The study protocol was approved by the Regional Research Committee of Uppsala, no 2009/171. Informed consent was obtained from all individual participants included in the study.
: Not applicable.
: The authors declare that they have no competing interests.
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