Affiliation: | 1. Department of Obstetrics and Gynecology, Valme University Hospital, Seville, Spain;2. Deparment of Physiotherapy, University of Seville, Seville, Spain;3. Biostatistics Unit, Department of Preventive Medicine and Public Health, University of Seville, Seville, Spain;4. Department of Obstetrics and Gynecology, University of Seville, Seville, Spain |