The data in ChEMBL is covered by the licence in the file LICENSE. Under the -BY clause, we request attribution for subsequent use of ChEMBL. For publications using ChEMBL data, the primary current citation is: 1. A. Gaulton, L. Bellis, J. Chambers, M. Davies, A. Hersey, Y. Light, S. McGlinchey, R. Akhtar, A.P. Bento, B. Al-Lazikani, D. Michalovich, & J.P. Overington (2012) 'ChEMBL: A Large-scale Bioactivity Database For Chemical Biology and Drug Discovery' Nucl. Acids Res. Database Issue. 40 D1100-1107 DOI:10.1093/nar/gkr777 PMID:21948594 If ChEMBL is incorporated into other works, we ask that the ChEMBL IDs are preserved, and that the release number of ChEMBL is clearly displayed.