1. Drug Product Technologies, Process Development, Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
2. College of Pharmacy, The University of Texas at Austin, 2409 West University Avenue, PHR 4.214, Austin, Texas 78712, United States
3. Drug Product Technologies, Process Development, Amgen, 360 Binney Street, Cambridge, Massachusetts 02142, United States