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Initial symptoms of patients in decreasing order of frequency.
| All patients | Left-hemispheric | Right-hemispheric | |
|---|---|---|---|
| N | 20 | 13 | 7 |
| Aphasia | 10 | 9 | 1 |
| Paresis | 9 | 6 | 3 |
| Nausea | 7 | 5 | 2 |
| Headache | 6 | 5 | 1 |
| Sensory impairments | 6 | 3 | 3 |
| Confusion | 3 | 3 | 0 |
| Amnesia | 3 | 2 | 1 |
| Visual symptoms | 2 | 2 | 0 |
