Priyatini T., Department of Obstetrics and Gynecology, Faculty of MedicinDr, Cipto Mangunkusumo Hospital, Universitas Indonesia, Jakarta, Indonesia; Surya R., Department of Obstetrics and Gynecology, Faculty of MedicinDr, Cipto Mangunkusumo Hospital, Universitas Indonesia, Jakarta, Indonesia; Djusad S., Department of Obstetrics and Gynecology, Faculty of MedicinDr, Cipto Mangunkusumo Hospital, Universitas Indonesia, Jakarta, Indonesia; Santoso B.I., Department of Obstetrics and Gynecology, Faculty of MedicinDr, Cipto Mangunkusumo Hospital, Universitas Indonesia, Jakarta, Indonesia