参考文献

Cheung, Mui; Harris, Philip Anthony; Hasegawa, Masaichi; Ida, Satoru; Kano, Kazuya; Nishigaki, Naohiko; Sato, Hideyuki; Veal, James Marvin; Washio, Yoshiaki; West, Rob I. Patent: US2004/82583 A1, 2004 ; US 20040082583 A1