Editorial: The aetiological factors in cancer of the gastro-intestinal tract.
D000349:Africa; D000428:Alcohol Drinking; D002273:Carcinogens; D004032:Diet; D004938:Esophageal Neoplasms / Q000209:etiology*; D005770:Gastrointestinal Neoplasms / Q000209:etiology*; D006801:Humans; D012907:Smoking / Q000150:complications
D002273:Carcinogens