1. Cancer Centre of Trinidad and Tobago, St James Medical Complex, St James, Trinidad and Tobago
2. Center for Cancer Research, National Cancer Institute, Bethesda, MD
3. Radiology Department, Port-of-Spain General Hospital, Port-of-Spain, Trinidad and Tobago
4. Division of Cancer Treatment and Diagnosis, National Cancer Institute, Bethesda, MD
5. Genentech, a Member of the Roche Group, San Francisco, CA
6. Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA
7. Harvard Medical School, Boston, MA