Inclusive criteria: the biological features, orientated differentiation and evaluation of MSCs, together with the current research or mechanism about the treatment of SCI by MSCs.

纳入标准：文章所述内容应涉及骨髓基质细胞的生物学特征、定向分化、鉴定以及骨髓基质细胞治疗脊髓损伤的研究现状或作用机制等内容。

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The research of sci-tech news source at the practical basis is rational thinking for the basis of sci-tech news dissemination, which has a certain theoretical and practical value.

在实践基础上研究科技新闻源是对科技新闻传播的基础进行的理性思考，具有一定的理论意义和实践价值。

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But sci also has its certain limitations, so the science research management departments should use it carefully according to their practical conditions.

但是SCI也有一定的局限性，科研管理部门应根据自己的实际情况，慎重使用sci。

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Thiel puts his money where his mouth is, funding not only early-stage start-up companies but long-shot research into sci-fi inventions.

FORBES: Tyler Cowen's Techno Slump

By combining broad views of the future with technical skills, experience, and research, visioneers take speculative ideas out of the hands of sci-fi writers and technological forecasters and put them on firmer ground.

FORBES: We May Not Have Flying Cars Yet, But Visioneers Are Inventing a New Future

Besides SCI and biotechnology research, most of the budget is used for ethical and over-the-counter (o-t-c) products.

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