Fig. 1
From: Fifteen years of ChEMBL and its role in cheminformatics and drug discovery
Comparison of database schemas for ChEMBL 01 vs. ChEMBL 35. Higher resolution images for both entity-relationship diagrams (ERDs) can be found as part of the respective ChEMBL release notes [29] as well as in Supplements (Supplementary Figs. 1 and 2)