Frequency of Concrete Words Modulates Prefrontal Activation during Semantic Judgments. - Michael W. L. Chee; Nicholas H. H. Hon; David Caplan; Hwee Ling Lee; Joshua Oon Soo Goh (NeuroImage, 2002)

Reproducibility of the word frequency effect: comparison of signal change and voxel counting. - Michael W. L. Chee; Hwee Ling Lee; Chun Siong Soon; Christopher Westphal; Vinod Venkatraman (NeuroImage, 2003)

The Role of Right and Left Parietal Lobes in the Conceptual Processing of Numbers. - Marinella Cappelletti; Hwee Ling Lee; Elliot D. Freeman; Cathy J. Price (J. Cogn. Neurosci., 2010)