1. Department of Nursing, Universitat Jaume I, Av de Vicent Sos Baynat, 12071 Castelló, Spain
2. Department of Nursing, Universitat de València, 46007 Valencia, Spain
3. Department of Obstetrics and Gynaecology, Hospital Universitario de la Ribera, 46600 Valencia, Spain
4. Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO-SP), 46020 Valencia, Spain
5. Department of Nursing, University of Alicante, 03080 Alicante, Spain
6. Department of Obstetrics and Gynaecology, Hospital Luis Alcanyis, 46800 Xàtiva, Spain
7. Nursing and Healthcare Research Unit (Investén-Isciii), Institute of Health Carlos III, 28029 Madrid, Spain
8. Department of Maternity, Hospital General Universitario, 12004 Castelló, Spain