Citation, on the other hand, appears in the text and plays the role of relating other texts to the new one.

而另一方面，引文出现在支中，起联系其他文本和新文本的作用。

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Hand searches also were conducted of the reference lists of primary studies, review articles, and clinical guidelines along with full-text review of any citation that appeared relevant.

并手动检索其主要研究结果、综述、临床指南，以及与之相关的引文中所出现的参考文献。

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Hand searches also were conducted of the reference lists of primary studies, review articles, and clinical guidelines along with full-text review of any citation that appeared relevant.

并手动检索其主要研究结果、综述、临床指南，以及与之相关的引文中所出现的参考文献。

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