1. Kilimanjaro Clinical Research Institute—Kilimanjaro Christian Medical Centre Moshi Tanzania
2. Kilimanjaro Christian Medical University College Moshi Tanzania
3. Huruma Hospital Rombo Tanzania
4. Kibosho Hospital Kilimanjaro Tanzania
5. Hai District Hospital Kilimanjaro Tanzania
6. Nkwarungo Hospital Machame Kilimanjaro Tanzania
7. Section of Genetics International Agency for Research on Cancer Lyon France
8. Environmental and Lifestyle Epidemiology Branch International Agency for Research on Cancer Lyon France