参考文献

Eijgendaal, Irene; Klein, Gerrit; Terhorst-Van Amstel, Maria J.L.; Zwier, Klaas; Bruins, Nico; Rigter, Hendrikus T.; Gout, Erik Patent: US2006/40932 A1, 2006 ; Location in patent: Page/Page column 4-5 ;