Familial cancer of the esophagus in Iran.
D000367:Age Factors; D004938:Esophageal Neoplasms / Q000235:genetics*; D005260:Female; D006801:Humans; D007492:Iran; D008297:Male; D008906:Mining; D010375:Pedigree; D011159:Population Surveillance; D012189:Retrospective Studies