参考文献

Radhakrishnan, Balasingam; Aggarwal, Diti; Ferro, Michelle; James, Kenneth D.; Malkar, Navdeep B.; Miller, Mark A.; Pavliv, Leo; Polowy, Karen; Puskas, Monica; Ekwuribe, Nnochiri N. Patent: US2006/18874 A1, 2006 ; Location in patent: Page/Page column 33 ;