参考文献

Conn, P. Jeffrey; Lindsley, Craig W.; Stauffer, Shaun R.; Manka, Jason; Jacobs, Jon; Zhou, Ya; Bartolomé-Nebreda, José Manuel; Macdonald, Gregor James; Conde-Ceide, Susana; Jones, Carrie K. Patent: US2012/172391 A1, 2012 ; Location in patent: Page/Page column 79 ; US 20120172391 A1