1. Department of General Surgery, Kilimanjaro Christian Medical Center, P O Box 3010, Moshi, Tanzania
2. Kilimanjaro Christian Medical University College, P O Box 2240, Moshi, Tanzania
3. Department of Pathology, Kilimanjaro Christian Medical Center, P O Box 3010, Moshi, Tanzania
4. Department of Pediatrics, Kilimanjaro Christian Medical Center, P O Box 3010, Moshi, Tanzania