- Correspondence to Karin Emtell Iwarsson, Department of Women’s and Children’s Health, Karolinska Institutet, WHO-Centre, QB:84, Karolinska University Hospital Solna, Stockholm 171 76, Sweden;
- Received June 29, 2018
- Revised December 19, 2018
- Accepted December 27, 2018
- First published January 21, 2019.
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