其第一个孩子有肺动脉瓣狭窄。
椎间盘退变和椎管狭窄的发生与第一个临近节段的疗效有巨大的相关性。
Disc degeneration and stenosis correlated significantly with outcome at the first adjacent level.
椎间盘退变和椎管狭窄的发生与第一个临近节段的疗效有巨大的相关性。
Disc degeneration and stenosis correlated significantly with outcome at the first adjacent level.
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