这个词是什么意思？
A geographical area of the United States with no definite boundaries but comprising northeastern Alabama, northwestern Georgia, northwestern South Carolina, western North Carolina, eastern Kentucky, eastern Tennessee, western Virginia, West Virginia, western Maryland, southwestern Pennsylvania, southern Ohio, and southern New York.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D001061 · MeSH 2026。
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