以罕见疾病及慢性疾病作为检索对象，以MEDLINE为数据源、MeSH为主要选词标准，分别使用PubMed搜索引擎中的3种不同的检索方法——默认的PubMed自动转换匹配检索、CISMeF自动转换匹配检索及通过主题词概念检索（即Medline索引的检索）进行检索实验，对3种不同检索方法的检出量和精确度进行比较分析，发现使用主题词概念检索比主题词检索所得到的检索精确度更高。希望该实验结果能够为我国医学文献检索系统的开发研制提供有益参考。
This paper takes rare diseases and chronic diseases as search objectives, MEDLINE as the data source, and MeSH as main selecting standards. Then it makes search experiments using three different search strategies in PubMed search engine, including PubMed Automatic Term Mapping (ATM), Catalog and Index of French-language Health Internet (CISMeF) ATM, and extrapolating the MEDLINE citations that should be indexed with a MeSH Concept. Finally, it makes a comparative analysis on the retrieval results and precisions of three sets of queries that are built for them. The results show that higher retrieval precision can be obtained with queries based on MeSH Concepts rather than MeSH Descriptors which is the current default. It hopes that the experiment can provide a useful reference for the development of medical document retrieval system in China.
[1] 2011 Medical Subject Headings[EB/OL].[2013-10-22].http://www.nlm.nih.gov/cgi/mesh/2011/MB_cgi.
[2] 史艳莉, 刘爱中, 惠华强, 等.PubMed改版升级后"一框三键"检索操作技巧[J]. 中国医学教育技术, 2011(3):302-304.
[3] 闫微, 张亚莉, 邓小茹.基于PubMed数据源的生物医学文献检索工具应用特点[J].医学信息学杂志, 2012(1):50-53.
[4] Thirion B, Pereira S, Névéol A, et al. French MeSH Browser: A cross-language tool to access MEDLINE/PubMed[J]. AMIA Annu Symp Proc, 2007(11):1132.
[5] 黄晴珊, 王长希.PubMed检索效果探讨[J].医学情报工作, 2003(5):341-342.
[6] 侯跃芳, 赵玉虹, 龚黛琛. Google Scholar、Scirus及PubMed检索功能对比研究[J].医学信息学杂志, 2009(7):12-16.
[7] Les Cahiers d'Orphanet.Pre'valence des maladies rares: Donne'es bibliographiques[EB/OL].[2013-10-22].http://www.orpha.net/orphacom/cahiers/docs/FR/Prevalence_des_maladies_rares_par_ordre_alphabetique.pdf.
[8] National Library of Medicine. MEDLINE baseline repository data[EB/OL].[2013-10-22].http://mbr.nlm.nih.gov/Download/index.shtml.
[9] 宋文.统一医学语言系统及其应用[J]. 情报理论与实践, 2005(5):518-522.
[10] 张士靖, 杜建.GOPubMed:基于GO和MeSH的信息检索与分析研究[J].医学信息学杂志, 2009(7):6-11.
[11] 胡德华, 梁丽明. PubMed主题词检索与自由词检索的检索效率比较研究[J]. 情报科学, 2006(5):717-721.
[12] Catalog and Index of French-language Health Internet (CISMeF) Concept-based query.[EB/OL].[2013-10-22].http://doccismef.chu-rouen.fr/servlets/Simple?Mot5belatacept.co&aff54&tri520&datt51&msh5msh&debut50.
[13] Darmoni S J, Leroy J P, Baudic F, et al.CISMeF: A structured health resource guide[J].Methods Information in Medicine, 2000, 39(1):30-35.
[14] Gault L V, Shultz M, Davies K J. Variations in Medical Subject Headings (MeSH) mapping: From the naturallanguage of patron terms to the controlled vocabulary of mapped lists[J].Journal of the Medical Library Association, 2002, 90(2):173-180.
[15] Lipscomb C E. Medical Subject Headings (MeSH)[historical notes] [J]. Bulletin of the Medical Library Association, 2000, 88(3):265-266.
[16] 吴晓萍.探讨PubMed检索系统词汇的自动匹配功能[J].医学信息, 2007(9):1561-1565.
