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Table 2: Diffusion property measurement of corticospinal tract by ROI analysis^{^a}
Region FA D_av (10⁻³ mm²/S)
ALS Healthy Controls P Value^{^b} ALS Healthy Controls P Value^{^b}
Pons 0.53 (0.08) 0.61 (0.04) .001^{^c} 0.83 (0.06) 0.74 (0.05) .003^{^c}
Medulla 0.50 (0.01) 0.58 (0.05) .06^{^c} 1.01 (0.23) 0.85 (0.12) .011^{^c}
↵a Data are in mean (SD) or in number range.
↵b P value is calculated with the Mann-Whitney U test.
↵c Post hoc Bonferroni correction.

Region	FA			D_av (10⁻³ mm²/S)
Region	ALS	Healthy Controls	P Value^{^b}	ALS	Healthy Controls	P Value^{^b}
Pons	0.53 (0.08)	0.61 (0.04)	.001^{^c}	0.83 (0.06)	0.74 (0.05)	.003^{^c}
Medulla	0.50 (0.01)	0.58 (0.05)	.06^{^c}	1.01 (0.23)	0.85 (0.12)	.011^{^c}