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Distribution characteristics of the right superior lobar pulmonary artery.
| Basilar artery stem from basilar artery | N | % |
|---|---|---|
| 1 artery supplies blood | 32 | 7.6 |
| 2 arteries supplies blood | 327 | 77.9 |
| 3 arteries supplies blood | 59 | 14.0 |
| 4 arteries supplies blood | 2 | 0.5 |
