Talk to the NCBI EUtils
Extract the data content from an Entrez request
database
ecitmatch - searching PubMed with citation data
efetch - downloading full records
egquery - performing a global Entrez search
einfo - getting database statistics and search fields
elink - finding related data through Entrez links
Class "entrez_linkset"
Class "entrez_uid"
epost - uploading UIDs to Entrez
esearch - searching an Entrez database
espell - retrieving spelling suggestions
esummary - downloading Document Summaries
Class "eutil": Reference classes that hold the response from EUtils ...
Class "eutil_error":
EFetch accessors
EInfo accessors
ELink Accessors
ESearch Accessors
getError
getUrl
linkset
Flatten nested lists
Set the NCBI rettype
performQuery
querykey
retmode
rettype
Talk to the NCBI EUtils
ESummary accessors
uid
webenv
Extract the attributes of XML nodes
Extract the tag name of XML nodes
Extract a node set from an XML document
Extract the content of XML leaf nodes
An interface to NCBI databases such as PubMed, GenBank, or GEO powered by the Entrez Programming Utilities (EUtils). The nine EUtils provide programmatic access to the NCBI Entrez query and database system for searching and retrieving biological data.