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Global and Current Research Trends of Single-Cell Sequencing in Cancer: A Bibliometric and Visualization Study
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Five major challenges for medical bibliometrics.

Jens F Rehfeld1

  • 1Department of Clinical Biochemistry, Copenhagen University Hospital - Rigshospitalet.

Danish Medical Journal
|January 23, 2026
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Summary

Bibliometrics, the study of scientific publications, has evolved with new metrics like citation counts. Understanding its limitations and potential pitfalls is crucial for accurate scientific assessment.

Area of Science:

  • Bibliometrics and scientometrics
  • Medical research evaluation

Background:

  • Bibliometrics, involving counting publications, has existed historically.
  • Since 1955, metrics like citations, impact factors, and h-indexes have become integral to scientific assessment, particularly in medical science.
  • The bibliometric data industry is substantial, with private companies providing extensive data services.

Purpose of the Study:

  • To review and highlight the major challenges and limitations inherent in bibliometric analysis.
  • To raise awareness regarding potential pitfalls in interpreting bibliometric data.
  • To provide a framework for critically evaluating bibliometric information.

Main Methods:

  • A comprehensive review of existing literature on bibliometrics.
  • Identification and categorization of key challenges in bibliometric studies.

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  • Discussion of five primary areas of concern: Quality, Impact, Co-authorship, Databases, and Fraud.

    • Main Results:

    • Bibliometric analysis faces significant challenges related to data Quality.
    • The interpretation of scientific Impact using bibliometric indicators is complex and often problematic.
    • Co-authorship patterns require careful analysis to avoid misinterpretation.
    • Limitations and biases exist within various bibliometric Databases.
    • The prevalence and detection of Fraud in scientific publications pose a threat to bibliometric integrity.

    Conclusions:

    • Awareness of bibliometric limitations is essential for accurate scientific evaluation.
    • Critical appraisal of bibliometric data, considering factors like quality, impact, and potential fraud, is necessary.
    • Further research and standardized methodologies are needed to address the identified challenges in bibliometrics.