Affiliation: | 1. Department of Therapeutic Discovery, Amgen Research, Amgen, Thousand Oaks, CA 91320, USA;2. Department of Neuroscience, Amgen Research, Amgen, Thousand Oaks, CA 91320, USA;3. Department of Therapeutic Discovery, Amgen Research, Amgen, San Francisco, CA 94080, USA;4. Department of Therapeutic Discovery, Amgen Research, Amgen, Burnaby, BC V5A 1V7, Canada |