Methods: the private nerve grafting group and the blood vessel implant degeneration skeletal muscle group were compared.

方法：用自体神经移植及血管植入变性骨骼肌作为对照组比较。

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Our first incentivized competition, the Ansari X PRIZE, went to Scaled Composites, which beat out 26 teams from seven countries to become the first to build and launch a private space vessel that could carry three people 100 kilometers into space twice within two weeks.

FORBES: Launching the Next Era in Space Travel and Exploration