Table 1 Size and number of elements of data sources

ClinicalTrials.gov

http://www.clinicaltrials.gov

50303

99 mb

Gold Miner (Subset)

http://http//goldminer.arrs.org

2085

0.5 mb

Gene Expression Omnibus

http://www.ncbi.nlm.nih.gov/geo/

2085

0.7 mb

PubMed (Subset)

http://www.ncbi.nlm.nih.gov/pubmed

2827

3.7 mb