【关键词】食管白斑食管白斑（leukoplakia of esophagus）曾被认为是一种罕见的疾病，但近年来逐年迅速增加，我院发现年龄最小的1例食管白斑其年龄仅15岁，而最多见仍在40岁以上，男性较多...
双语例句
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The evidence of BQ chewing as one of the major risk factors leading to leukoplakia, oral submucous fibrosis, oral cancer and esophagus cancers have been well published.