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上接2007,7(8):623-6243文献检索与筛选3.1?检索方式的选择评价范围(参见2.1不良反应的评价范围)决定了检索策略的性质。检索和筛选的一般方法如下:
Followed by 2007, 7 (8): 623-6243 Document retrieval and screening 3.1? Selection of search methods The scope of assessment (see 2.1 Evaluation of adverse reactions) determines the nature of the search strategy. The general method of searching and filtering is as follows: