Optical Mapping of the Frontal Cortex During a Surgical Knot-Tying Task, a Feasibility Study. - Daniel Richard Leff; Peck Hui Koh; Rajesh Aggarwal; Julian J. H. Leong; Fani Deligianni; Clare E. Elwell; David T. Delpy; Ara Darzi; Guang-Zhong Yang (MIAR, 2006)