[1] Amgen Inc, Dept Med Chem, Cambridge, MA 02139 USA
[2] Amgen Inc, Dept Mol Struct, Cambridge, MA 02139 USA
[3] Amgen Inc, Dept Pharmaceut, Cambridge, MA 02139 USA
[4] Amgen Inc, Dept Pharmacokinet & Drug Metab, Cambridge, MA 02139 USA
[5] Amgen Inc, Dept Oncol Res, Thousand Oaks, CA 91320 USA
[6] Amgen Inc, Dept Mol Struct, Thousand Oaks, CA 91320 USA
[7] Amgen Inc, Dept Pharmacokinet & Drug Metab, Thousand Oaks, CA 91320 USA