Frequency effects of Chinese character processing in the brain: an event-related fMRI study. - Wen-Jui Kuo; Tzu-Chen Yeh; Chia-Ying Lee; Yu-Te Wu; Chi-Cher Chou; Low-Tone Ho; Daisy L. Hung; Ovid J. L. Tzeng; Jen-Chuen Hsieh (NeuroImage, 2003)