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What is Europe PMC?

Europe PMC is a repository, providing access to worldwide life sciences articles, books, patents and clinical guidelines. Europe PMC provides links to relevant records in databases such as Uniprot, European Nucleotide Archive (ENA), Protein Data Bank Europe (PDBE) and BioStudies.

By default, the Europe PMC RESTful(one of the APIof epmc searches) search results are sorted by relevance, with the most relevant result being presented first in the list.

How Can we search Europe PMC?

The main Europe PMC site provides two search functions: a free text search, direct from the main search box, or an advanced search, from the advanced search page which provides you with a number of different parameter(Operators) options.

EPMC query window

search for "Holy basil".

Action: Enter Holy basil into the window

We always give the query in either single-quotes(') or in double-quotes(") because in quotes it takes as a compelet query otherwise EPMC search it for words only

if we type holy basil, then it search for holy and basil for two different words only not as a query.

Step 1.

Type  `holy basil` into EPMC Search box and get following results.

holy_basil1

Step 2.

Type  ` "Holy basil" ` we get following results:

holy_basil2

So from here we get an idea that how we should put our queries in proper way into EPMC searche box and get Relevant results.

Further More Queries For Better Understanding.

Type "O.sanctum" as a query we get :15 results as showed below

O.sanctum

Type "Ocimum sanctum" as a query we get :976 results below

Ocimum_sanctum

Type "Ocimum" as a query it searches for only ocimum in articles and gives the:3650 results

ocimum in too general

Using Advanced search we can remove false-positive i.e we can eliminate the False information from search which we Don't want to be in our search.

Example to remove false-positive,type "tulsi" in your search box of eupmc and get:835 results.

tulsi

Now Open your advance search box and type tulsi in title in Bibliographic Fields:as shown below

we can see that using TITLE:"tulsi" Advanced search we get: 56 hits of tulsi

Here we get a clear picture of Advanced search that how it eliminate the false-positive ,when we are using "tulsi" we get so many hits because it search tulsi as a word which mean it can be name of any human-being(tulsi) but after using TITLE:"tulsi" it give only 56 hits ,that means we get ourresults only regarding scientific query.

To Search how many Authors are from NIPGR and Cmbridge type (AUTH_CON:"cambridge" OR AUTH_CON:"nipgr")

After clicking on Open Access Button on right-hand corner of Content-Types to see all Downloadable papers from EPMC.

Search using Different Synonyms, Type (ocimum) OR (o.sanctum) OR (Tulsi) in the search box we get the following results.

Type your Synonym Query into Advance search box as shown below and we get different results.

  • NOTE: Use Operators (AND , OR , NOT) While using Synonyms.

Suppose we want something only in Body NOT in the Title then type your query in Advance search as following in Bibliographic Fields.

Try following Excercises of wheat,you get to know how exactly EPMC searches give results.

Queries You can try

  1. Wheat papers since 2015:

(PUB_YEAR:"PUB_YEAR:[2015 TO 2019]") AND (TITLE:"Wheat")--> 47974 results (Title=wheat-->All Bibliographic Field-->year-publication=PUB_YEAR:[2015 TO 2019])

  1. Authors from nipgr OR cambridge :

(AUTH_CON:"cambridge" OR AUTH_CON:"nipgr") (Article Sections) -->(Author contributions)

  1. Find wheat but Not in the Title :

(KW:"wheat" NOT TITLE:"wheat") AND (IN_EPMC:y) AND (OPEN_ACCESS:y)--> 357 results

  1. wheat in Body only:

(KW:"wheat" NOT TITLE:"wheat" OR ABSTRACT:"wheat") 4923 results