Is Opium a Real Risk Factor for Esophageal Cancer or Just a Methodological Artifact? Hospital and Neighborhood Controls in Case-Control Studies

Environmental Causes of Esophageal Cancer

(2009) Farin Kamangar et al.   GASTROENTEROLOGY CLINICS OF NORTH AMERICA

Vitamin E intake and risk of esophageal and gastric cancers in the NIH-AARP Diet and Health Study

(2009) Sarah Carman et al.   INTERNATIONAL JOURNAL OF CANCER

Lifetime and baseline alcohol intake and risk of cancer of the upper aero-digestive tract in the European Prospective Investigation into Cancer and Nutrition (EPIC) study

(2009) Cornelia Weikert et al.   INTERNATIONAL JOURNAL OF CANCER

Cohort Profile: The Golestan Cohort Study--a prospective study of oesophageal cancer in northern Iran

(2009) A. Pourshams et al.   INTERNATIONAL JOURNAL OF EPIDEMIOLOGY

Opium Consumption and the Risk of Traffic Injuries in Regular Users: A Case-Crossover Study in an Emergency Department

(2009) Reza Majdzadeh et al.   Traffic Injury Prevention

Tea drinking habits and oesophageal cancer in a high risk area in northern Iran: population based case-control study

(2009) F. Islami et al.   BMJ-British Medical Journal

Opium, tobacco and alcohol use in relation to oesophageal squamous cell carcinoma in a high-risk area of Iran

(2008) D Nasrollahzadeh et al.   BRITISH JOURNAL OF CANCER