1. The University of Texas MD Anderson Cancer Center, Houston, TX
2. Guy's and St Thomas' Hospital, London, United Kingdom
3. Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa
4. University of Alabama and Birmingham, Birmingham, AL
5. Tygerberg Hospital, Stellenbosch University, Cape Town, South Africa
6. Benavides Cancer Institute, University of Santo Tomas, Manila, Philippines
7. Ocean Road Cancer Institute, Dar es Salaam, Tanzania
8. University of the Free State, Bloemfontein, South Africa
9. University of California San Francisco, San Francisco, CA
10. University Hospitals Plymouth, Plymouth, United Kingdom
11. Stanford University, Stanford, CA