这个词是什么意思？
The geographic area of the midwestern region of the United States in general or when the specific state or states are not indicated. The states usually included in this region are Illinois, Indiana, Iowa, Kansas, Kentucky, Michigan, Minnesota, Missouri, Nebraska, Ohio, Oklahoma, North Dakota, South Dakota and Wisconsin.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D015146 · MeSH 2026。
Courtesy of the U.S. National Library of Medicine. Annual snapshot; later updates may not be reflected. NLM does not endorse this service.