参考文献

Curtis, Michael; Duclos, Brian A.; Ewin, Richard A.; Johnson, Paul D.; Johnson, Timothy Allen; Vairagoundar, Rajendran; Billen, Denis; Goodwin, Richard M.; Haber-Stuk, Andrea K.; Kyne, Graham M.; Sheehan, Susan M. K. Patent: US2013/237502 A1, 2013 ; Location in patent: Paragraph 0623 ;