参考文献:
Storey, Anthony Davis, Julie Ricketts, Sally-Ann Medizabal, Marivi Cuthbertson, Alan Arukwe, Joseph Heywood, Kirsty Wilson, Ian Wynn, Duncan Schafers, Michael Levkau, Bodu Wagner, Stefan Breyholz, Hans-Jorg Kopka, Klaus Patent: US2007/7170 A1, 2007 Location in patent: Page/Page column 1