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Table 3: Clinical scoresa
ALSFRS-R MMT At MRI Progression Rate at MRI Per Month At 1 Year after MRI At MRI Total score, mean ± SD (/maximum) 37.96 ± 6.06 (/48) 0.59 ± 0.45 36.79 ± 4.84 (/48) 114.46 ± 24.36 (/140) Arm subscore, mean ± SD (/maximum) 5.11 ± 2.20 (/8) 0.18 ± 0.14 5.74 ± 2.10 (/8) 53.71 ± 12.25 (/70) 
- Note:—MMT indicates manual muscle testing. 
- ↵a Clinical scores are presented both in total (top row) and for the upper limbs only (arm subscore, bottom row). Presented clinical scores are, from left to right: the revised ALSFRS-R at the time of MRI, ALSFRS-R progression rate at MRI, ALSFRS-R at 1 year after MRI, and MMT at MRI. The progression rate represents the decline of ALSFRS-R score per month between the first onset of symptoms and the MRI.