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A higher level grouping of ALSFRS items based on the dendrogram of Figure 7 as is interpreted by medical convention.
| Group | ALSFRS Functions | Semantic and Medical Interpretation |
|---|---|---|
| 1 | Salivation, Speech, Swallowing | Bulbar |
| 2 | Handwriting, Cutting Food and Eating | Upper limbs |
| 3 | Walking, Climbing Stairs | Lower limbs |
| 4 | Turning in Bed, Dressing/Hygiene | Full body |
| 5 | Respiratory | Respiratory |
