1. Department of Obstetrics and Gynaecology, Juan Ramon Jimenez Hospital, Huelva, Spain
2. Department of Obstetrics and Gynaecology, Virgen de Valme University Hospital, Seville, Spain
3. Department of Pharmacy, Virgen de Valme University Hospital, Seville, Spain
4. Department of Obstetrics and Gynaecology, Virgen del Rocio University Hospital, Seville, Spain