参考文献

Egle, Ian; Isaac, Methvin; Urbanek, Rebecca; McLaren, Frances M.; Walsh, Sally B.; Steelman, Gary B.; Brown, Dean G.; Nugiel, David; Chen, Deborah W.; Slassi, Abdelmalik; Ma, Fupeng Patent: US2009/192169 A1, 2009 ; Location in patent: Page/Page column 60 ;