AMGEN INC.; ALLEN, Jennifer R.; CHEN, Jian J.; FROHN, Michael J.; KALLER, Matthew Richard; LIU, Qingyian; NGUYEN, Thomas T.; PICKRELL, Alexander J.; QIAN, Wenyuan; RZASA, Robert M.; ZHONG, Wenge Patent: WO2013/188724 A1, 2013 ;