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Table 3 Number of references identified per database in English language

From: What are the socio-economic impacts of genetically modified crops worldwide? A systematic map protocol

Database Number of references (with duplicates)
Web of Science 4,110
Scopus 3,434
Google Scholar 8,763
British Library for Development Studies 850
ELDIS 1,551
AGRIS 3,720
IFPRI 2,125
JOLIS 440
OECD iLibrary 339
AGRICOLA 261
IDEAS/REPEC 4,932
BASE 8,050
Open Grey 206
TOTAL 38,781
  1. Details of the searches can be found in the Additional file 7.