1. Faculty of Medicine, Universitas Airlangga Surabaya; Lecturer, Faculty of Health and Medicine, College of Nursing, Institut Ilmu Kesehatan Strada Indonesia
2. Faculty of Medicine, Universitas Airlangga Surabaya
3. Faculty of Medicine, Universitas Airlangga Surabaya; Lecturer, Faculty of Nursing, Universitas Airlangga Surabaya
4. Department of Obstetrics and Gynaecology; Faculty of Medicine, Universitas Airlangga Surabaya