SureChEMBL: a large-scale, chemically annotated patent document database. - George Papadatos; Mark Davies; Nathan Dedman; Jon Chambers; Anna Gaulton; James Siddle; Richard Koks; Sean A. Irvine; Joe Pettersson; Nicholas T. Goncharoff; Anne Hersey; John P. Overington (Nucleic Acids Res., 2016)