Retrieves the number of citations in PubMed Central for the articles contained in the EUtilsSummary or Medline object.
EUtilsSummary
Medline
Cited(object)
instance of class Medline or EUtilsSummary
vector
Medline, EUtilsSummary
# NOT RUN { res <- EUtilsSummary("myeloma[ti]", mindate = "2002/01/01", maxdate = "2002/02/01", retmax = 5) Cited(res) # }
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