参考文献

Bergeron, Philippe; Farthing, Christopher N.; Jones, Stuart D.; Liebeschuetz, John W.; Lively, Sarah E.; McGee, Lawrence R.; McKendry, Sharon; Sheppard, David; Young, Stephen C. Patent: US2006/84802 A1, 2006 ; Location in patent: Page/Page column 35 ; US 20060084802 A1