en Original Nasopharyngeal Neoplasms, Nasopharyngeal carcinoma, Epidemiology, Histology, incidence, Iran 3 12 https://ijorl.mums.ac.ir/article_21615.html Ali Safavi Naini alisafavi2000@gmail.com 93844 No National Research Institute of Tuberculosis and Lung Diseases, Massih Daneshvari Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Mohammad Mehdi Rostami mmrostamient@gmail.com 93845 No National Research Institute of Tuberculosis and Lung Diseases, Massih Daneshvari Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Fatemeh Shojaeian fshojae1@jhmi.edu 93846 No Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, US. Mehdi Azizmohammad Looha mehdi.looha@gmail.com 93847 No Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Ali Ghanbari Motlagh agmotlagh@yahoo.com 93848 No Cancer Office, Deputy of Health, Ministry of Health, Tehran, Iran. Amirali Safavi md.amirali.safavi@gmail.com 93849 No National Research Institute of Tuberculosis and Lung Diseases, Massih Daneshvari Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Seyed Amir Ahmad Safavi-Naini sdamirsa@ymail.com 93850 Yes National Research Institute of Tuberculosis and Lung Diseases, Massih Daneshvari Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.