- Correspondence to Dr Ane Lilleøre Rom, Research Unit Women's and Children's Health, The Juliane Marie Centre, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, section 7821, Copenhagen DK-2100, Denmark;
- Received 15 June 2015
- Revised 11 November 2015
- Accepted 13 November 2015
- Published online 23 December 2015.
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