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从本世纪80年代起，在中国食管癌高发地带太行山区，相继开展了一系列食管癌高危人群的营养干预试验研究，多数结果令人失望。本文以基本事实为依据作一报道，并加以分析讨论。基本事实事例之一：1983年9月至1984年9月我们与法国里昂的国际癌症研究中心（IARC）等合作，在河南
Since the 1980s, in the Taihang Mountain area, a high-risk area of esophageal cancer in China, a series of nutritional intervention trials have been carried out in high-risk groups for esophageal cancer, and most of the results have been disappointing. This article makes a report based on the basic facts and analyzes and discusses it. One of the basic facts: From September 1983 to September 1984 we cooperated with the International Cancer Research Center (IARC) in Lyon, France, etc., in Henan