1. Oncology Department, Yekatit 12 Hospital Medical College, Addis Ababa, Ethiopia
2. Global Health Working Group, Martin-Luther-University Halle-Wittenberg, Germany
3. Oncology Department, Addis Ababa University, Addis Ababa, Ethiopia
4. Surveillance and Health Service Research, American Cancer Society, Atlanta, GA
5. Department of Gynaecology, Martin-Luther-University Halle-Wittenberg, Halle, Germany