To investigate the relationship between dietary factors and esophagealneoplasm in China.
研究中国人群饮食因素与食管癌的关联。
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METHODS HLA-DQB1 gene polymorphisms were typed by sequence specific primer based polymerase chain reaction, in 42 patients with esophagealneoplasm and 136 normal control subjects.
Methods LOH at APC and MCC genetic loci in 46 specimens resected from esophagealneoplasm was studied with polymerase chain reaction (PCR) and restriction fragment length polymorphism (RFLP).