参考文献

Miknis, Greg; Lyssikatos, Joseph P.; Laird, Ellen; Tarlton, Eugene; Buckmelter, Alexandre J.; Ren, Li; Rast, Bryson; Schlacter, Stephen T.; Wenglowsky, Steven Mark Patent: US2007/49603 A1, 2007 ; Location in patent: Page/Page column 40 ; US 20070049603 A1