1. Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
2. Ocean Road Cancer Institute, Dar es Salaam, Tanzania
3. MD Anderson Cancer Center, Houston, TX
4. University of California, San Francisco, Helen Diller Family Comprehensive Cancer Center, San Francisco, CA
5. University of Pennsylvania, Philadelphia, PA
6. University of Oslo, Oslo, Norway
7. Kaiser Permanente Santa Clara, Santa Clara, CA