title: Geographic and secular variation in mortality from malignant disease in Oklahoma 1956-1965. 3. Cancer of the gastrointestinal tract.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D004938:Esophageal Neoplasms / Q000401:mortality; D005260:Female; D005770:Gastrointestinal Neoplasms / Q000401:mortality*; D005843:Geography; D006801:Humans; D008113:Liver Neoplasms / Q000401:mortality; D008297:Male; D008875:Middle Aged; D009825:Oklahoma; D010190:Pancreatic Neoplasms / Q000401:mortality; D012189:Retrospective Studies