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Updated: Jan 11, 2026
05:02
Comparing Bibliometric Analysis Using PubMed, Scopus, and Web of Science Databases
Published on: October 24, 2019
33.5K
Supplementary search methods versus bibliographic database searching to identify studies and study reports
Chris Cooper1, Daniela C Gonçalves-Bradley2,3, Christopher J Rose4
1Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK.
The Cochrane Database of Systematic Reviews
|November 12, 2025
Summary
This review assesses supplementary search methods against database searching for finding studies. It evaluates effectiveness and resource needs of citation searching, author contact, handsearching, regulatory sources, registries, and web searching.
Area of Science:
- Information Science
- Health Research Methodology
Background:
- Bibliographic database searching is standard for identifying research studies.
- However, supplementary methods may improve study identification efficiency and comprehensiveness.
Purpose of the Study:
- To evaluate the effectiveness and resource implications of supplementary search strategies.
- Comparison is made against traditional bibliographic database searching.
Main Methods:
- The review protocol outlines the assessment of various supplementary search methods.
- These include citation searching, direct contact with study authors, handsearching, utilizing regulatory agency sources and clinical study reports, exploring clinical trials registries, and web searching.
Main Results:
- Effectiveness and resource requirements of each supplementary method will be analyzed.
- Data will be synthesized to compare performance against bibliographic database searching.
Conclusions:
- Findings will inform optimal strategies for comprehensive literature searching in systematic reviews.
- This aims to enhance the evidence base for healthcare decisions.
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