Indarti, J., Department of Obstetrics and Gynaecology, Faculty of Medicine, Universitas Indonesia/Cipto Mangunkusumo Hospital, Jalan Salemba Raya No. 6, Jakarta, 10430, Indonesia; Rachmadi, L., Department of Pathologic Anatomy, Faculty of Medicine, Universitas Indonesia/Cipto Mangunkusumo Hospital, Jakarta, Indonesia; Sutrisna, L.T.A., Department of Obstetrics and Gynaecology, Faculty of Medicine, Universitas Indonesia/Cipto Mangunkusumo Hospital, Jalan Salemba Raya No. 6, Jakarta, 10430, Indonesia; Hiksas, R., Department of Obstetrics and Gynaecology, Faculty of Medicine, Universitas Indonesia/Cipto Mangunkusumo Hospital, Jalan Salemba Raya No. 6, Jakarta, 10430, Indonesia; Alda, K., Department of Obstetrics and Gynaecology, Faculty of Medicine, Universitas Indonesia/Cipto Mangunkusumo Hospital, Jalan Salemba Raya No. 6, Jakarta, 10430, Indonesia