1. Khon Kaen University; Department of Obstetrics and Gynaecology, Faculty of Medicine; 123 Mitraparb Road Amphur Muang Khon Kaen Thailand 40002
2. Princess Alexandra Wing, Royal Cornwall Hospital; Gynaecological Oncology; Truro UK TR1 3LJ
3. Khon Kaen University; Department of Epidemiology and Biostatistics, Faculty of Public Health; 123 Miltraparp Road Khon Kaen Khon Kaen Thailand 40002