The use of SES implantation was not restricted to "on-label" indications, and target lesions included in-stent restenosis, vein graft, left main stem locations, bifurcations, and long lesions.
SES置入不受“标签”适应证的限制，靶病变包括支架内再狭窄、静脉搭桥、左主干局部病变、分叉病变和长病变。
The main stem will extend to around 12 ft, if left to develop naturally.
如果让其自然生长，主干会延伸到12英尺左右。
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