1. Results have shown no significant difference between the 2 operations: 75% for scalenectomy without rib resection and 70% for scalenectomy with rib resection.
两种手术方式的结局没有明显的差异：切除斜角肌保留第一肋的成功率为75%，两者均切除的为70%。
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2. Results have shown no significant difference between the 2 operations: 75% for scalenectomy without rib resection and 70% for scalenectomy with rib resection.
