AMGEN INC.; CHENG, Yuan; POWERS, Timothy; ASHTON, Kate; BROWN, James; HARRIED, Scott; HITCHCOCK, Stephen; JUDD, Ted; LOPEZ, Patricia; NIXEY, Thomas; PARAS, Nick A,; POON, Steve F.; ST. JEAN JR., David J.; XUE, Qiufen; ZHONG, Wenge Patent: WO2011/63233 A1, 2011 ; Location in patent: Page/Page column 32 ; WO 2011/063233 A1