参考文献

Charifson, Paul S.; Cottrell, Kevin Michael; Deng, Hongbo; Duffy, John P.; Gao, Huai; Giroux, Simon; Green, Jeremy; Jackson, Katrina Lee; Kennedy, Joseph M.; Lauffer, David J.; Ledeboer, Mark Willem; Li, Pan; Maxwell, John Patrick; Morris, Mark A.; Pierce, Albert Charles; Waal, Nathan D.; Xu, Jinwang Patent: US2013/281431 A1, 2013 ; Location in patent: Paragraph 0237 ;