参考文献:
AMGEN INC. ASHTON, Kate BOURBEAU, Matthew, Paul HONG, Fang-Tsao LIU, Longbin NISHIMURA, Nobuko NORMAN, Mark, H. POON, Steve, F. STEC, Markian, M. ST. JEAN, David, J., JR TAMAYO, Nuria, A. YANG, Kevin, C. Patent: WO3/3444 A, 3 Location in patent: Page/Page column 83