Fig. 2.
(A) MRI apparent transverse relaxation rates (R2*) in basal ganglia ROI (CN, PUT, and GP) for welders and controls, and (B) for controls, Welding-Not-Recent, and Welding-Recent subgroups. (C) MRI longitudinal relaxation rates (R1) in basal ganglia ROI for welders and controls, and (D) for controls, Welding-Not-Recent, and Welding-Recent subgroups. Values are raw R2* means ± SD. * indicates significance (p < 0.05) after correction for multiple group comparisons using the Benjamin-Hochberg method.