1. Maternal–Fetal Medicine Division, Obstetrics & Gynecology Department Dr. Soetomo Academic General Hospital, Universitas Airlangga Surabaya Indonesia
2. Anatomical Pathology Department, Dr. Soetomo General Hospital, Universitas Airlangga Surabaya Indonesia
3. Women & Children's Division, Department of Obstetrics and Gynecology, Lyell McEwin Hospital University of Adelaide Adelaide Australia