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为了解胃食管反流与食管腺癌及胃贲门腺癌之间的关系,研究者在瑞典进行了一个全国人口范围的病例对照研究。
In order to understand the relationship between gastroesophageal reflux and esophageal adenocarcinoma and gastric cardia adenocarcinoma, the researchers conducted a national population-wide case-control study in Sweden.