Is opium a real risk factor for esophageal cancer or just a methodological artifact? Hospital and neighborhood controls in case-control studies
scientific article
Author/s
author: Christian C. Abnet, Reza Malekzadeh, Arash Etemadi, Farhad Islami, Paolo Boffetta, Paul Brennan, Sanford M Dawsey, Dariush Nasrollahzadeh, Farin Kamangar, Saman Fahimi, Ramin Shakeri, Hooman Khademi, Seyed Mehdi Nouraie, Atieh Rahmati, Alireza Sepehr, Hajiamin Marjani, Reza Majdzadeh
Work details
Copyright status
Copyright status information is not available for this work. The copyright status depends on the jurisdiction, the author's date of death and the date the work was created or published.
To learn more about copyright terms in different countries, visit the countries and terms page.