参考文献

Huang, Zilin; Jin, Jeff; Machajewski, Timothy; Antonios-McCrea, William R.; McKenna, Maureen; Poon, Daniel; Renhowe, Paul A.; Sendzik, Martin; Shafer, Cynthia; Smith, Aaron; Xu, Yongjin; Zhang, Qiong; Chen, Zheng Patent: US2013/210818 A1, 2013 ;