Comparison of search filtering between traditional literature search and evidence-based evidence search

Comparison of evidence-based medicine retrieval and traditional literature retrieval. Evidence-based medicine retrieval. Traditional literature retrieval of information sources emphasizes comprehensive collection of various databases, search tools, and relevant journals. There is little analysis of ongoing research and unpublished and ongoing research.

Search unpublished clinical research literature. The search scope emphasizes obtaining all currently available relevant literature (multi-national, multi-lingual literature without strict requirements for search scope and recovery rate). The search method is mainly computer search, supplemented by manual search.

Search, reference tracing, little reference tracing and gray literature search Gray literature search Search all relevant clinical evidence databases and clinical practice guidelines No strict requirements for database selection No strict requirements for databases and bibliographic databases Search strategy

The formulation is rigorous, and scientific systematic reviews and randomized controls pay more attention to review literature or Xu Da literature. They do not pay attention to the search results and focus on the level of clinical evidence. Particular attention is paid to the evaluation of the methodology and the research results of the evaluation trials involving the authenticity of the literature and methodology.

, attach importance to the authenticity of evidence,