Bubble effect: including internet search engines in systematic reviews introduces selection bias and impedes scientific reproducibility
Abstract Background Using internet search engines (such as Google search) in systematic literature reviews is increasingly becoming a ubiquitous part of search methodology. In order to integrate the vast quantity of available knowledge, literature mostly focuses on systematic reviews, considered to...
Main Authors: | , |
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Format: | Article |
Language: | English |
Published: |
BMC
2018-11-01
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Series: | BMC Medical Research Methodology |
Subjects: | |
Online Access: | http://link.springer.com/article/10.1186/s12874-018-0599-2 |