![](https://libapps.s3.amazonaws.com/accounts/311142/images/LitSense.png)
LitSense searches over a half billion statements from both PubMed and PubMed Central at the sentence level, allowing you to type in questions as sentences. Given a query, LitSense finds the best-matching sentences based on overlapping terms as well as semantic similarity via a cutting-edge neural embedding approach.
Searching Features:
- Free and open to all users.
- Has a user friendly interface.
- Can simultaneously search both PubMed and PubMed Central (30+ million citations).
- Results can be filtered by either Publication Year or Article Section (Methods, Results, etc.).
- LitSense only displays sentences that share at least 60% of similar terms with the query sentence. Long query sentences will often return no results.
- To make some part of your query mandatory, surround it by double quotes. For example, for the query "measles outbreak" vaccination only documents containing "measles outbreak" will be shown.
- Matching terms are highlighted in bold.
- A colored vertical line represents the degree to which the returned sentence is similar to the user query, from orange (high) to green (moderate) to blue (low).
![score colors legend](data:image/png;base64,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)