1Department of Pathology, Amgen, Inc., One Amgen Center Drive, Thousand Oaks, California 91320-1789
2Department of Cell Biology, Amgen, Inc., One Amgen Center Drive, Thousand Oaks, California 91320-1789
3Department of Protein Chemistry, Amgen, Inc., One Amgen Center Drive, Thousand Oaks, California 91320-1789
4Department of Mammalian Cell Molecular Biology, Amgen, Inc., One Amgen Center Drive, Thousand Oaks, California 91320-1789
5Department of Bacterial Expression, Amgen, Inc., One Amgen Center Drive, Thousand Oaks, California 91320-1789
6Department of Process Science, Amgen, Inc., One Amgen Center Drive, Thousand Oaks, California 91320-1789