Functional imaging of working memory following normal sleep and after 24 and 35 h of sleep deprivation: Correlations of fronto-parietal activation with performance. - Michael W. L. Chee; Lisa Y. M. Chuah; Vinod Venkatraman; Wai Yen Chan; Pierre Philip; David F. Dinges (NeuroImage, 2006)

Use of normative distribution of gray to white matter ratio in orthogonal planes in human brain studies and computer-assisted neuroradiology. - Wieslaw L. Nowinski; Varsha Gupta; Wai Yen Chan; Yih-Yian Sitoh; Kang Sim (Int. J. Comput. Assist. Radiol. Surg., 2011)