1. Non‐communicable Diseases Research Division Wits Health Consortium (PTY) Ltd Johannesburg South Africa
2. Division of Medical Oncology, Department of Medicine, Faculty of Health Sciences University of the Witwatersrand Johannesburg South Africa
3. Sylvester Comprehensive Cancer Center and Department of Medicine, Miller School of Medicine University of Miami Miami Florida USA
4. Department of Medicine, Vagelos College of Physicians and Surgeons Columbia University New York New York USA
5. National Cancer Registry National Health Laboratory Service Johannesburg South Africa
6. Sydney Brenner Institute for Molecular Bioscience, Faculty of Health Sciences University of the Witwatersrand Johannesburg South Africa
7. Department of Surgery, Faculty of Health Sciences University of the Witwatersrand Johannesburg South Africa
8. Department of Specialized Surgery, Inkosi Albert Luthuli Central Hospital, Durban and Ngwelezana Hospital University of KwaZulu‐Natal Empangeni KwaZulu‐Natal South Africa
9. Department of Surgery and Radiation Oncology, Grey's Hospital University of KwaZulu‐Natal Pietermaritzburg KwaZulu‐Natal South Africa
10. Department of Surgery, Ngwelezana Hospital Empangeni and University of KwaZulu‐Natal KwaZulu‐Natal South Africa
11. South Africa Medical Research Council Common Epithelial Cancers Research Center, Faculty of Health Sciences University of the Witwatersrand Johannesburg South Africa
12. SAMRC/Wits Developmental Pathways to Health Research Unit, Department of Pediatrics, Faculty of Health Sciences University of the Witwatersrand Johannesburg South Africa
13. School of Public Health, Faculty of Health Sciences University of the Witwatersrand Johannesburg South Africa
14. Environment and Lifestyle Epidemiology Branch International Agency for Research on Cancer (IARC/WHO) Lyon France
15. Herbert Irving Comprehensive Cancer Center, Vagelos College of Physicians and Surgeons Columbia University New York New York USA
16. Department of Epidemiology, Mailman School of Public Health Columbia University New York New York USA