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为了解中国农村地区大样本的阿尔茨海默病 (ＡＤ)的患病情况 ,我们于 1 999年 1 1～ 1 2月和 2 0 0 0年 4～ 5月在河南林县进行了ＡＤ患病率调查。对象 以 1 985年中国医学科学院肿瘤研究所在河南林县四个区征集的所有 40～ 69岁、无食管癌病史 ,并进入随机、双盲的营养干预试
To understand the prevalence of a large sample of Alzheimer’s disease (AD) in rural China, we developed AD in Lin County, Henan Province from January 1 to February of 2000 and from April to May of 2000. Morbidity survey. Subjects All 40- to 69-year-old patients with no history of esophageal cancer were enrolled in four districts of Lin County, Henan Province, in 1985, and entered a randomized, double-blind nutritional intervention trial.