1. Instituto Nacional De Cancerología De ColombiaBogotá Colombia
2. Prevention and Implementation GroupInternational Agency for Research on CancerLyon France
3. Institute of Statistics, National Tsing‐Hua UniversityHsin‐Chu Taiwan
4. Division of Public Health SciencesFred Hutchinson Cancer Research CenterSeattle WA
5. Departments of Surgery and Global Health MedicineUniversity of WashingtonSeattle WA