| ALS | amyotrophic lateral sclerosis |
| CSF | cerebrospinal fluid |
| HFMSE | Hammersmith Functional Motor Scale Expanded |
| NF | neurofilament |
| RBC | red blood cell count |
| SEM | standard error of mean |
| SMA | spinal muscular atrophy |
| SMN | survival motor neuron |
| WBC | white blood cell count |
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