1. Department of Plastic Surgery, Odense University Hospital, University of Southern Denmark, Institute of Clinical Research, Research Unit of Plastic Surgery, Odense, Denmark
2. Department of Gynaecology and Obstetrics, Odense University Hospital, University of Southern Denmark, Institute of Clinical Research, Research Unit of Gynaecology and Obstetrics, Odense, Denmark
3. Institute of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark
4. Centre for Health Economics Research (COHERE), University of Southern Denmark, Odense, Denmark
5. Division of Surgery, University College London, Northwick Park Institute of Medical Research Campus, London, UK