1. Department of Anesthesia and Reanimation, Virgen del Rocio University Hospital, 41013 Seville, Spain
2. Department of Obstetric and Gynecology, Maternity and Children Hospital, Virgen del Rocio University Hospital, 41013 Seville, Spain
3. Department of Cardiovascular Surgery, Virgen del Rocio University Hospital, 41013 Seville, Spain
4. Department of Preventive Medicine and Public Health, University of Seville, 41004 Seville, Spain
5. Department of Preventive Medicine and Public Health, Virgen Macarena University Hospital, 41009 Seville, Spain