参考文献

Lee, Ving; Benkovic, Stephen J.; Baker, Stephen J.; Maples, Kirk R.; Akama, Tsutomu; Zhang, Yong-Kang; Singh, Rajeshwar; Sauro, Vittorio A.; Pandit, Chetan; Su, Zhuoyi; Yang, Zhixiang Patent: US2005/70503 A1, 2005 ;