title: Developing multilevel search filters for clinical questions represented as conceptual graphs.
abstract: This work has the objective to implement a search strategy model for high precision retrieval of documents in reply to a clinical query. To achieve this goal we designed a series of search filters on a staged configuration that allow documents to be retrieved from the most precise to the less specific. We found that for most questions the most relevant articles are retrieved at early stages of the search.
authors.affiliation: Department of Biomedical Informatics, Columbia University, New York, NY, USA.
authors.forename: Evandro E S
authors.initials: EE
authors.lastname: Ruiz
authors.forename: Marina
authors.initials: M
authors.lastname: Chilov
authors.forename: Stephen B
authors.initials: SB
authors.lastname: Johnson
authors.forename: Eneida A
authors.initials: EA
authors.lastname: Mendonça
mesh_terms: D003628:Database Management Systems; D016247:Information Storage and Retrieval / Q000379:methods*; D016347:Medical Records Systems, Computerized; D009323:Natural Language Processing; D009518:New York; D057386:Search Engine; D014584:User-Computer Interface