参考文献

Basha, Anwer; Bunnelle, William H.; Dart, Michael J.; Gallagher, Megan E.; Ji, Jianguo; Li, Tao; Pace, Jennifer M.; Ryther, Keith B.; Tietje, Karin R. Patent: US2005/65178 A1, 2005 ; Location in patent: Page/Page column 17 ;