Institution: | 1. Department of Obstetrics and Gynecology, Ioannina University Hospital, 45500 Ioannina, Greece;2. Department of Obstetrics and Gynecology, Ioannina University Hospital, 45500 Ioannina, Greece
Harris Birthright Research Centre for Fetal Medicine, King's College Hospital, London SE5 9RS, UK;3. Harris Birthright Research Centre for Fetal Medicine, King's College Hospital, London SE5 9RS, UK;4. Department of Clinical Biochemistry, Harold Wood Hospital, Romford RM3 0BE, Essex, UK |