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Table 1 Examples of retrieval services for MEDLINE

From: Relemed: sentence-level search engine with relevance score for the MEDLINE database of biomedical articles

service

availability

relevance score

description

PubMed

public/free

no

NLM's search engine for MEDLINE

SLIM

public/free

no

alternative search interface using slider controllers to implement search limits, methodology filters, and MeSH terminologies

askMEDLINE

public/free

no

free-text, natural language query tool for PubMed

eTBLAST

public/free

yes

inputs an entire paragraph and returns articles that are similar to it

Ovid's MEDLINE

subscription required

no

a search engine to MEDLINE

HubMed

public/free

yes

shows first the articles that contain the search terms most frequently in the title and/or abstract

PubMedAssistant

public/free

no

biologist-friendly interface for enhanced PubMed search

CISMeF

public/free

no

gives ranked list of relevant specialties that relate to topics discussed in each article

GoPubMed

public/free

no

classifies the retrieved articles using Gene Ontology terms

AnneOTate

public/free

no

A tool for summarizing the results of a PubMed query

ArrowSmith

public/free

no

A tool for identifying links between two sets of Medline articles

PubMed Gold

public/free

no

finds PDFs for PubMed citations