Abstract:Writing paper cannot do without literature retrieval.You can only find useful materials in a large amount of information timely and quickly if you familiar with the methods and approaches of literature retrieval.Only in this way we can avoid repetitive labor,save writing time, find a valuable topics through the analysis of information,write papers,and then write a paper.
Web of science (https://www.webofknowledge.com/);PubMed(https://www.ncbi.nimnih.gov/pubmed/);Springer (http://www.springer.com/cn/);High Wire (http://home.highwire.org/);Wiley Online (http://onlinelibrary.wiley.com/);PLOS(https://www.plos.org/)。
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