Affiliation: | a Department of Obstetrics and Gynecology, University Hospital of the Canary Islands, Canary Islands, Spain b Department of Paediatrics, University Hospital of the Canary Islands, Canary Islands, Spain c Nursing School, University of La Laguna, Tenerife, Canary Islands, Spain d Department of Obstetrics and Gynaecology, University Hospital “Puerta del Mar” Cádiz, Spain |