参考文献

Bo, Yunxin Y.; Chakrabarti, Partha P.; Chen, Ning; Liao, Hongyu; Norman, Mark H.; Stec, Markian; Tamayo, Nuria; Wang, Xianghong Patent: US2006/183745 A1, 2006 ; Location in patent: Page/Page column 51 ; US 20060183745 A1