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Distribution of symptoms
| Location of symptoms | The site of hands where the symptom started (%) | The site of hands where the symptom is currently located (%) |
|---|---|---|
| Between fingers | 11.7 | 25 |
| Back of hands | 52.1 | 62.2 |
| Palms of hands | 9.4 | 16.7 |
| Wrists | 9.2 | 19.5 |
| Nails | 0.9 | 4.4 |
