1. Department of Epidemiology and Biostatistics, Institute of Public Health, Kilimanjaro Christian Medical University College, Moshi, Kilimanjaro, Tanzania
2. Department of Internal Medicine, Kilimanjaro Christian Medical University College, Moshi, Kilimanjaro, Tanzania
3. Department of Emergency Medicine, Kilimanjaro Christian Medical University College, Moshi, Kilimanjaro, Tanzania
4. Department of Internal Medicine, Kilimanjaro Christian Medical Centre, Moshi, Kilimanjaro, Tanzania