Takashi Tokuda, Yoichi Takeuchi, Yuki Sagawa, Toshihiko Noda, Kiyotaka Sasagawa, Kentaro Nishida, Takashi Fujikado, Jun Ohta. Development and in vivo Demonstration of CMOS-Based Multichip Retinal Stimulator With Simultaneous Multisite Stimulation Capability. IEEE Trans. Biomed. Circuits and Systems, 4(6):445-453, 2010. [doi]