Construct URL to make NCBI EUtils query
Construct a URL query for any database of the National Center for Biotechnology Information (NCBI).
EUtilsQuery(query,type="esearch",db="pubmed",...)
query |
string query as given in NCBI search box |
type |
string indicating type of NCBI Eutility |
db |
string indicating the NCBI database used in query |
... |
additional limits added to query |
Possible E-utilities to supply to type are einfo, esearch, epost, esummary, elink, egquery, espell.
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/.
Limits that can be supplied to ... to refine the query include:
reldate |
Limits search results to be within the specified number of days from current date. |
mindate |
Minimum of date range for search results (examples: 2002; 2002/01/01); must be supplied with maxdate. |
maxdate |
Maximum of date range for search results; must be supplied with mindate. |
datetype |
Which date field to use in setting date limits. Possible choices are edat, Entrez date, which is the date article was added to Entez, or ppdt, the article publication date. Default is edat. |
retstart |
Where in the sequence of returned results to begin retrieving, default is 0. |
retmax |
Maximum number of records to retrieve, default is 1000. |
String URL to access NCBI E-utility.
Stephanie Kovalchik s.a.kovalchik@gmail.com
Query help:
MEDLINE/PubMed Field Descriptions
# PUBMED QUERY
EUtilsQuery("myeloma[ti] jones[au]")
# RESTRICT TO RECORDS WITHIN LAST 30 days
EUtilsQuery("myeloma[ti] jones[au]",reldat=30)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.