2DOF Magnetically Driven Microtool for Soft Peeling of Zona Pellucida. - Yoko Yamanishi; Tomohiro Kawahara; Tomohiro Iyanagi; Masaya Hagiwara; Takehito Mizunuma; Naoki Inomata; Shogo Kudo; Fumihito Arai (J. Robotics Mechatronics, 2010)