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Correlation analysis between the history of smoking and drinking and the distribution of intracranial and extracranial artery stenosis.
| No arterial stenosis | Simple intracranial | Simple extracranial | Intracranial combined extracranial | |
|---|---|---|---|---|
| Smoking history | 88 (49.2%) | 150 (50.6%) | 18 (56%) | 60 (53%) |
| Drinking history | 49 (27%) | 79 (29.6%) | 13 (34%) | 42 (34.8%) |
