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Appendix D BIBLIOMETRIC ANALYSIS
Pages 156-159

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From page 156...
... Please use the print version of this publication as the authoritative version for attribution. BIBLIOMETRIC ANALYSIS DATA SOURCES AND DEFINITIONS Journal Sets This study analyzes data from an NIH data set established in 1981 and based on the approximately 1,000 journals that are indexed by both the National Library of Medicine's Medline and the Science Citation Index (SCI)
From page 157...
... Attention was focused primarily on subfields included in the fields of clinical medicine and biomedical research. The revolution in basic biomedical science methods that has occurred since the Watson-Crick elucidation of the roles of DNA and RNA in the biological and biomedical sciences has blurred distinctions, even among the subfields designated "Biomedical Research." The distinctions and the titles are retained for convenience in analysis and discussion.
From page 158...
... Six major subfields that substantially increased their production of research papers during the 1977–1980 period but produced fewer papers during the 1981–1984 period are general and internal medicine, embryology, hygiene-public health, biophysics, tropical medicine, and virology. In all of these subfields except embryology, average journal influence ratings remained higher than those in the corresponding academic sector (substantially higher for general and internal medicine)
From page 159...
... suggests the possibility that the NCI intramural programs in these two subfields, and in virology, may have been affected, as extramural programs certainly were. Although the number of cancer and genetics-heredity papers produced in 1981–1984 declined, quality measures improved for both fields (except the average journal influence of cancer papers, which declined slightly)


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