1. Department of Preventive Medicine, School of Public Health, College of Health Sciences, Addis Ababa University , Addis Ababa , Ethiopia
2. Institute of Medical Epidemiology, Biometrics and Informatics, Martin-Luther-University , Halle, Saale , Germany
3. Department of Surgery, St Paul’s Hospital Millennium Medical College , Addis Ababa , Ethiopia
4. Department of Oncology, School of Medicine, College of Health Sciences, Addis Ababa University , Addis Ababa , Ethiopia
5. Department of Psychiatry, School of Medicine, College of Health Sciences, Addis Ababa University , Addis Ababa , Ethiopia
6. University of Michigan, School of Social Work , Ann Arbor, MI , USA
7. Department of Gynaecology, Martin-Luther-University , Halle (Saale ), Germany