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Table 1 The number of references retrieved from different databases for the search between 2011 and 2017 using specific combinations of search items relating to genotoxicity

From: An updated review of the genotoxicity of respirable crystalline silica

Search item/Database
Quartz or crystalline silica +
PubMed ToxLine CCRIS Total
genotoxicity 18 2 0 20
mutation 32 58 0 90
chromosome 11 13 0 24
Micronucleus 10 1 1 12
DNA repair 2 8 0 10
Comet 12 0 0 12
Total (after exclusion of double hits) 59 81 1 141
Inflammation OR fibrosis OR toxicity 413 220 0 633
Surface 2929 392 0 3321