Cancer of the gastrointestinal tract. Etiological and environmental factors.
D000437:Alcoholism / Q000150:complications; D003680:Deglutition Disorders / Q000150:complications; D004781:Environmental Exposure; D004938:Esophageal Neoplasms / Q000453:epidemiology / Q000209:etiology*; D004940:Esophageal Stenosis / Q000150:complications; D005260:Female; D005387:Finland; D005602:France; D006801:Humans; D007492:Iran; D008297:Male; D012737:Sex Factors; D012907:Smoking / Q000150:complications; D014586:USSR; D006113:United Kingdom; D014481:United States; D014804:Vitamin B Deficiency / Q000150:complications