1. Department Health Care, Brussels Centre for Healthcare Innovation, Erasmus Brussels University of Applied Sciences and Arts, 1090 Brussels, Belgium
2. Department of Public Health, Biostatistics and Medical Informatics Research Group, Vrije Universiteit Brussel (VUB), 1090 Brussels, Belgium
3. Department of Teacher Education, Vrije Universiteit Brussel (VUB), 1040 Brussels, Belgium
4. Faculty of Health, Liverpool John Moores University, Liverpool L3 5UX, UK
5. Centre for Midwifery, Maternal & Perinatal Health, Bournemouth University, Bournemouth BH1 3LH, UK
6. Frauenzentrum (Centre for Women’s Health), Lindenhofgruppe, 3012 Bern, Switzerland
7. Support for Quantitative and Qualitative Research (SQUARE), Core Facility of the Vrije Universiteit Brussel (VUB), 1090 Brussels, Belgium