7T quantitative magnetization transfer (qMT) of cortical gray matter in multiple sclerosis correlates with cognitive impairment. - Lydia J. McKeithan; Bailey Lyttle; Bailey A. Box; Kristin P. O'Grady; Richard D. Dortch; Benjamin N. Conrad; Lindsey M. Thompson; Baxter P. Rogers; Paul A. Newhouse; Siddharama Pawate; Francesca Bagnato; Seth A. Smith (NeuroImage, 2019)