Near infrared spectroscopy as a non-invasive assessment of cortical abnormality in migraine?

Griffin, M., Prior, D., Cooper, C. E., Wilkins, A. J., & Elwell, C. E. (2006). Near infrared spectroscopy as a non-invasive assessment of cortical abnormality in migraine? In Advances in Experimental Medicine and Biology (Vol. 578, pp. 203–208). Springer New York. https://doi.org/10.1007/0-387-29540-2_33