1. Computer-Aided Drug Discovery, Global Discovery Chemistry, Novartis Institutes for BioMedical Research, 181 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
2. GlaxoSmithKline PLC, 1250 S. Collegeville Road, Collegeville, Pennsylvania 19426, United States
3. Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
4. Department of Chemistry, Imperial College London, London, SW7 2AZ, U.K.