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Cited by 531

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

MedEx: a medication information extraction system for clinical narratives

Open access
Xu, H., Stenner, S. P, Doan, S., Johnson, K. B, Waitman, L. R, Denny, J. C·2010·Journal of the American Medical Informatics Association

Abstract

Medication information is one of the most important types of clinical data in electronic medical records. It is critical for healthcare safety and quality, as well as for clinical research that uses electronic medical record data. However, medication data are often recorded in clinical notes as free-text. As such, they are not accessible to other computerized applications that rely on coded data. We describe a new natural language processing system (MedEx), which extracts medication information from clinical notes. MedEx was initially developed using discharge summaries. An evaluation using a data set of 50 discharge summaries showed it performed well on identifying not only drug names (F-measure 93.2%), but also signature information, such as strength, route, and frequency, with F-measures of 94.5%, 93.9%, and 96.0% respectively. We then applied MedEx unchanged to outpatient clinic visit notes. It performed similarly with F-measures over 90% on a set of 25 clinic visit notes.

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Metadata

Authors
Xu, H., Stenner, S. P., Doan, S., Johnson, K. B., Waitman, L. R., & Denny, J. C.
Venue
Journal of the American Medical Informatics Association
Published
2010-01-01
Volume
17
Issue
1
Pages
19-24
ISSN
  • 1067-5027 (ISSN-L)
  • 1527-974X
OpenAlex
W2159636537
Cited by
531
References
1
FWCI
12.52
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: MedEx: a medication information extraction system for clinical narratives. https://app.cochat.ai/papers/10.1197/jamia.m3378
The paper
Xu, H., Stenner, S. P., Doan, S., Johnson, K. B., Waitman, L. R., & Denny, J. C. (2010). MedEx: a medication information extraction system for clinical narratives. Journal of the American Medical Informatics Association. https://doi.org/10.1197/jamia.m3378

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.