Download results of a query for any database of the National Center for Biotechnology Information (NCBI).
EUtilsGet(x,type="efetch",db="pubmed")
Either vector of NCBI records ids, i.e. returned ids from EUtilsSummary
, or the EUtilsSummary
object itself
string indicating type of NCBI Eutility, efetch
, esummary
, etc.
string indicating the NCBI database used in query
For queries to PubMed, a list by article, with named vectors for each field of the article result.
For all other database, a list of the XML
tree strucure used where XML output is available in E-Utils.
Possible E-utilities to supply to type
are efetch
, esummary
, and elink
.
The database name supplied to db
can be any valid Entrez database, such as pubmed
, protein
, nlm
, etc.
For further details on available E-utilities and databases visit https://www.ncbi.nlm.nih.gov/books/NBK25499/.
Note on usage:
In order not to overload the E-utility servers, NCBI recommends that users post no more than three URL requests per second and limit large jobs to either weekends or between 9:00 PM and 5:00 AM Eastern time during weekdays. Failure to comply with this policy may result in an IP address being blocked from accessing NCBI.
Summary help:
https://www.ncbi.nlm.nih.gov/books/NBK3827/
MEDLINE/PubMed Field Descriptions