1. Department of Pathology Kilimanjaro Christian Medical Centre Moshi Tanzania
2. Faculty of Medicine Kilimanjaro Christian Medical University College Moshi Tanzania
3. Department of General Surgery Kilimanjaro Christian Medical Centre Moshi Tanzania
4. Cancer Care Canter Kilimanjaro Christian Medical Centre Moshi Tanzania
5. Section Global Health, Institute for Hygiene and Public Health University Hospital Bonn Bonn Germany