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Table 2 Definitions of open, single-blind and double-blind peer review as operated by BioMed Central

From: Open, single-blind, double-blind: which peer review process do you prefer?

Open peer review Editors, authors and reviewers know each other’s identity. If the manuscript is published, the reviewer reports, any editors’ comments, authors’ response and all versions of the manuscript are available via an accompanying ‘pre-publication history’.
Single-blind peer review Reviewers know authors’ identity but not vice versa.
Double-blind peer review Authors and reviewers do not know each other’s identity