About the Authors

Hamideh Rashidian

Affiliation Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran

Maryam Hadji

Affiliation Cancer Research Center, Cancer Institute of Iran, Tehran University of Medical Sciences, Tehran, Iran

Maryam Marzban

Affiliation Student’ Research Center Committee, Shiraz University of Medical Science, Shiraz, Iran

Mahin Gholipour

Affiliation Golestan Research Center of Gastroenterology and Hepatology, Golestan University of Medical Sciences, Gorgan, Iran

Afarin Rahimi-Movaghar

Affiliation Iranian National Center for Addiction Studies (INCAS), Tehran University of Medical Sciences, Tehran, Iran

Farin Kamangar

Affiliation Department of Public Health Analysis, School of Community Health and Policy, Morgan State University, Baltimore, Maryland, United States of America

Reza Malekzadeh

Affiliation Digestive Oncology Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran

Elisabete Weiderpass

Affiliations Department of Research, Cancer Registry of Norway, Institute of Population-Based Cancer Research, Oslo, Norway, Department of Community Medicine, Faculty of Health Sciences, University of Tromsø, The Arctic University of Norway, Tromsø, Norway, Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden, Genetic Epidemiology Group, Folkhälsan Research Center, Helsinki, Finland

Abbas Rezaianzadeh

Affiliation Colorectal Research Center, Shiraz University of Medical Sciences, Shiraz, Iran

Abdolvahab Moradi

Affiliation Golestan Research Center of Gastroenterology and Hepatology, Golestan University of Medical Sciences, Gorgan, Iran

Nima Babhadi-Ashar

Affiliation Iranian National Center for Addiction Studies (INCAS), Tehran University of Medical Sciences, Tehran, Iran

Reza Ghiasvand

Affiliation Oslo Centre for Biostatistics and Epidemiology, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway

Hossein Khavari-Daneshvar

Affiliation Cancer Research Center, Cancer Institute of Iran, Tehran University of Medical Sciences, Tehran, Iran

Ali Akbar Haghdoost

Affiliation Regional Knowledge Hub, and WHO Collaborating Centre for HIV Surveillance, Institute for Futures Studies in Health, Kerman University of Medical Sciences, Kerman, Iran

Kazem Zendehdel

kzendeh@tums.ac.ir

Affiliations Cancer Research Center, Cancer Institute of Iran, Tehran University of Medical Sciences, Tehran, Iran, Cancer Biology Research Center, Cancer Institute of Iran, Tehran University of Medical Sciences, Tehran, Iran

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceptualization: KZ AAH FK RM. Formal analysis: HR KZ ARM AAH. Funding acquisition: KZ. Investigation: MH HR MM MG NB HKD. Methodology: AAH KZ FK RM ARM HR MH MM MG AM AR. Project administration: KZ MH HR. Resources: KZ. Software: Hr. Supervision: KZ. Validation: MH HR NB. Visualization: HR. Writing – original draft: HR KZ AAH. Writing – review & editing: HR AAH KZ EW ARM MG MH MM FK RM RG NB AM AR HKD.