Irwinda, R., Maternal Fetal Division, Department of Obstetrics and Gynaecology, Faculty of Medicine, Universitas Indonesia/Cipto-Mangunkusumo Hospital, Jakarta, Indonesia; Hiksas, R., Faculty of Medicine, Universitas Indonesia/Cipto-Mangunkusumo Hospital, Jakarta, Indonesia; Siregar, A.A., Faculty of Medicine, Universitas Indonesia/Cipto-Mangunkusumo Hospital, Jakarta, Indonesia; Saroyo, Y.B., Maternal Fetal Division, Department of Obstetrics and Gynaecology, Faculty of Medicine, Universitas Indonesia/Cipto-Mangunkusumo Hospital, Jakarta, Indonesia; Wibowo, N., Maternal Fetal Division, Department of Obstetrics and Gynaecology, Faculty of Medicine, Universitas Indonesia/Cipto-Mangunkusumo Hospital, Jakarta, Indonesia