1. Division of Cancer Epidemiology and Genetics National Cancer Institute Rockville Maryland USA
2. Information Management Services Inc. Calverton Maryland USA
3. Department of Epidemiology University of Washington School of Public Health Seattle Washington USA
4. US National Library of Medicine Bethesda Maryland USA
5. Center for Health Decision Science Harvard T.H. Chan School of Public Health Boston Massachusetts USA
6. Division of Cancer Prevention National Cancer Institute Rockville Maryland USA
7. Center for Global Health, National Cancer Institute Rockville Maryland USA
8. ISGlobal Barcelona Spain