1. Doctoral Program in Medical Science, Faculty of Medicine, Universitas Brawijaya, Malang 65145, East Java, Indonesia
2. Department of Midwifery, Faculty of Medicine, Universitas Brawijaya, Malang 65145, East Java, Indonesia
3. Department of Cardiology, Faculty of Medicine, Universitas Brawijaya, Universitas Brawijaya Hospital, Malang 65145, East Java, Indonesia
4. Department of Obstetrics and Gynecology, Faculty of Medicine, Universitas Brawijaya, Malang 65145, East Java, Indonesia
5. Department of Public Health, Faculty of Medicine, Universitas Brawijaya, Malang 65145, East Java, Indonesia