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| Category | Symptoms/signs |
|---|---|
| Sensory | (i) Hyperesthesia/hyperalgesia (ii) Allodynia |
| Vasomotor | (i) Temperature asymmetry (ii) Skin colour changes/asymmetry |
| Sudomotor/oedema | (i) Sweating changes/asymmetry (ii) Oedema |
| Motor/trophic | (i) Decreased range of motion (ii) Motor dysfunction (weakness, tremor, and dystonia) (iii) Trophic changes (hair, nails, and skin) |
