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Table 2 Data sources

From: The informed consent process in health research with under-served populations: a realist review protocol

Type of source

Name of source(s)

Electronic databases

EMBASE, MEDLINE, Web of Science, PsycINFO


UCL IRIS (Institutional Research Information Service),

HRA, MHRA, NIHR, (formerly INVOLVE),

Grey literature

Search engines (Google), Editorials, Opinion pieces


E.g. reports, conference presentations