Nelson J L
University of Southern California Health Sciences Library System, Los Angeles 90033.
Med Ref Serv Q. 1992 Winter;11(4):11-21. doi: 10.1300/j115v11n04_02.
End users at the University of Southern California (USC) have free access to the last ten years of MEDLINE through a local online system known as USCInfo. Librarians at USC Norris Medical Library provide documentation and offer formal and informal training on the use of the system to search MEDLINE. To assess the educational needs of the end users, 643 searches were analyzed. Although a high proportion (84%) of the searches were judged to be successful, the use of medical subject headings (MeSH) to obtain optimal results was low; only 20% of all successful subject searches employed MeSH. Also, the advanced features of the system were underutilized. While it is promising to learn that many end users are obtaining positive results, methods which will encourage end users improve their retrievals need to be developed.
南加州大学（USC）的终端用户可通过一个名为USCInfo的本地在线系统免费访问过去十年的医学文献数据库（MEDLINE）。USC诺里斯医学图书馆的馆员提供相关文档，并就该系统用于检索MEDLINE的使用方法提供正式和非正式培训。为评估终端用户的教育需求，对643次检索进行了分析。尽管大部分（84%）检索被判定为成功，但使用医学主题词（MeSH）以获得最佳结果的比例较低；在所有成功的主题检索中，仅20%使用了MeSH。此外，该系统的高级功能未得到充分利用。虽然了解到许多终端用户取得了积极成果很有前景，但仍需开发鼓励终端用户改进检索的方法。
