An Integrated Circuit for Simultaneous Extracellular Electrophysiology Recording and Optogenetic Neural Manipulation. - Chang-Hao Chen; Elizabeth A. McCullagh; Sio-Hang Pun; Peng Un Mak; Mang I Vai; Pui-In Mak; Achim Klug; Tim C. Lei (IEEE Trans. Biomed. Eng., 2017)