MeSH on Demand Tool: An Easy Way to Identify Relevant MeSH Terms

The National Library of Medicine is pleased to announce the launch of MeSH on Demand, a new feature accessible from the MeSH Browser homepage that uses the NLM Medical Text Indexer (MTI) to find MeSH terms.

Background

Currently, the MeSH Browser allows for searches of MeSH terms, text-word searches of the Annotation and Scope Note, and searches of various fields for chemicals. These searches assume that users are familiar with MeSH terms and using the MeSH Browser.

Wouldn’t it be great if you could find MeSH terms directly from your text such as an abstract or grant summary? MeSH on Demand has been developed in close collaboration among MeSH Section, NLM Index Section, and the Lister Hill National Center for Biomedical Communications to address this need.

Using MeSH on Demand

Use MeSH on Demand to find MeSH terms relevant to your text up to 10,000 characters. One of the strengths of MeSH on Demand is its ease of use without any prior knowledge of the MeSH vocabulary and without any downloads.

Access this feature by clicking on the MeSH on Demand logo from the MeSH Browser homepage (see Figure 1).

From the MeSH on Demand homepage (see Figure 2), add your text, such as an abstract, into the box labeled "Text to be Processed." Then, click the "Find MeSH Terms" button. Please read the Helpful Hints section of the homepage to improve your results.

For example, the abstract below (see Figure 3) contains the phrase "treatment-resistant depression." The relevant MeSH Heading found for that concept is Depressive Disorder, Treatment-Resistant. MeSH on Demand finds MeSH Headings, Publication Types, and Supplementary Concepts, but not Qualifiers (Subheadings).

Select the green question mark button next to the MeSH term or the MeSH term itself to open a new window with the MeSH Browser for that MeSH term.

Disclaimer

Please note the Disclaimer (see Figure 3) that these MeSH terms are machine generated by MTI and do not reflect any human review. While the results will be different from human-generated indexing, MeSH on Demand does find relevant MeSH terms that can help jump-start finding MeSH terms in your search area.

Suggestions and Feedback

We welcome your feedback on MeSH on Demand and MTI. Send comments and questions to NLM Customer Service. Please put "MeSH on Demand" in the subject box.

We also look forward to seeing your ideas for other helpful tools to utilize the MeSH vocabulary and NLM resources more easily. Please contact us at meshsugg@nlm.nih.gov.