Adi Ariffianto * Corresponding Author Department of Obstetry and Gynecology, Faculty of Medicine, Public Health and Nursing/Dr. Sardjito General Hospital, Universitas Gadjah Mada, Yogyakarta,
Ova Emilia Department of Obstetry and Gynecology, Faculty of Medicine, Public Health and Nursing/Dr. Sardjito General Hospital, Universitas Gadjah Mada, Yogyakarta,
Edi Patmini Siswanti Department of Obstetry and Gynecology, Faculty of Medicine, Public Health and Nursing/Dr. Sardjito General Hospital, Universitas Gadjah Mada, Yogyakarta,
Abdul Wahab Department of Biostatistics, Epidemiology and Population Health, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta