1. Cancer Research Center, Cancer Institute of Iran Tehran University of Medical Sciences Tehran Iran
2. Pathology and Stem Cell Research Center Kerman University of Medical Sciences Kerman Iran
3. Health Science Unit, Faculty of Social Sciences Tampere University Tampere Finland
4. Colorectal Research Center Shiraz University of Medical Sciences Shiraz Iran
5. School of Public Health, Department of Epidemiology and Biostatistics Bushehr University of Medical Sciences Bushehr Iran
6. The Persian Gulf Tropical Medicine Research Center, The Persian Gulf Biomedical Sciences Research Institute, The Persian Gulf Department of Aging Health Research Bushehr University of Medical Sciences Bushehr Iran
7. Health Services Management Research Center, Institute for Futures Studies in Health Kerman University of Medical Sciences Kerman Iran
8. Golestan Research Center of Gastroenterology and Hepatology Golestan University of Medical Sciences Gorgan Iran
9. Research Center for Environmental Determinants of Health, Institute of Health Kermanshah Medical Sciences University Kermanshah Iran
10. Social Development and Health Promotion Research Center Kermanshah University of Medical Sciences Kermanshah Iran
11. Research Center for Environmental Determinants of Health, Research Institute for Health Kermanshah University of Medical Sciences Kermanshah Iran
12. Gastrointestinal Cancer Research Center, Non‐communicable diseases Institute Mazandaran University of Medical Sciences Sari Iran
13. Health Promotion Research Center Zahedan University of Medical Sciences Zahedan Iran
14. Cardiovascular Research Center Hormozgan University of Medical Sciences Bandar Abbas Iran
15. Molecular Medicine Research Center Hormozgan University of Medical Sciences Bandar Abbas Iran
16. Hormozgan University of Medical Sciences Bandar Abbas Iran
17. Cancer Research Center Mashhad University of Medical Sciences Mashhad Iran
18. Department of Otorhinolaryngology Head and Neck Surgery, Shafa Hospital Kerman University of Medical Sciences Kerman Iran
19. International Agency for Research on Cancer (IARC) Lyon France
20. Department of Environmental Health Sciences University of Michigan Ann Arbor Michigan USA
21. Department of Otolaryngology University of Michigan Ann Arbor Michigan USA
22. International Agency for Research on Cancer (IARC/WHO) Lyon France
23. Digestive Oncology Research Center, Digestive Diseases Research Institute, Shariati Hospital Tehran University of Medical Sciences Tehran Iran
24. Metabolic Epidemiology Branch, Division of Cancer Epidemiology and Genetics National Cancer Institute Bethesda Maryland USA
25. Finnish Cancer Registry Helsinki Finland
26. Section of Environment and Radiation International Agency for Research on Cancer (IARC) Lyon France
27. Iranian National Center for Addiction Studies (INCAS) Tehran University of Medical Sciences Tehran Iran
28. Stony Brook Cancer Center Stony Brook University Stony Brook New York USA
29. Department of Medical and Surgical Sciences University of Bologna Bologna Italy
30. Department of Biology, School of Computer, Mathematical, and Natural Sciences Morgan State University Baltimore Maryland USA