1. Biostatistics/Bioinformatics Shared Resources; Moores Cancer Center, University of California San Diego; La Jolla CA 92093-0901 U.S.A.
2. Moores Cancer Center; University of California San Diego; La Jolla CA 92093-0695 U.S.A.
3. University of California, San Francisco, Small Molecule Discovery Center; San Francisco CA 94158-2330 U.S.A.