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Table 1 Results of scoping review to identify studies of biomarkers in Crohn’s disease, performed in March 2015

From: Prognostic biomarkers to identify patients destined to develop severe Crohn’s disease who may benefit from early biological therapy: protocol for a systematic review, meta-analysis and external validation

Search term Number of articles identified Number of clinical trials identified
Crohn’s disease 41,158 1962
Crohn’s 41,322 1867
All MeSH terms for Crohn’s disease 42,373 1992
All MeSH terms for biological markers 848,207 45,368
Crohn’s disease all MeSH terms and biological markers all MeSH terms 3308 225
Limit to 2013 338 35