[\'Ministry of Health Ankara City Hospital, Bilkent, Ankara, Turkey.\', \'Department of Electrical and Electronics Engineering, Bilkent University, Bilkent, Ankara, Turkey.\']
The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians