1. Department of Obstetrics and Gynecology, “Virgen de la Arrixaca” University Clinical Hospital, Murcia, Spain
2. Institute for Biomedical Research of Murcia, IMIB-Arrixaca, Murcia, Spain
3. Division of Preventive Medicine and Public Health, Department of Public Health Sciences, University of Murcia School of Medicine, Murcia, Spain
4. Biomedical Research Centre Network for Epidemiology and Public Health (CIBERESP), Madrid, Spain
5. Department of Preventive Medicine, “Virgen de la Arrixaca” University Clinical Hospital, Murcia, Spain