PUBMED简介（国外英文资料）.docVIP

PUBMED简介（国外英文资料） Source: /sjs/pubmedjj.htm PubMed retrieval system profile The PubMed retrieval system is /PubMed / The PubMed system is an online retrieval system developed by the national center for biotechnology information (NCBI) to retrieve MEDLINE and PreMED LINE databases. MEDLINE is the national Library of Medicine (discipline ational Library of Medicine) is the most important bibliography abstract database, content involves Medicine, nursing, dentistry, veterinary Medicine, health care and basic medical. It has more than 4000 medical journals from over 70 countries and regions in the world, with more than 10 million entries in the current bibliographic digest, starting in 1966. PreMEDLINE is a database of temporary medical literature. It constantly to accept new data on a daily basis, to provide users with basic literature entry and abstract, its literature entries after the indexing and the processing to move MEDLINE plus once a week. PubMed through electronic communications accept publishers also provide literature data entry, the entry with MEDLINE record in the process instructions, and marked [record as supplied by the publisher] logo. This entry every day constantly to PreMEDLINE transfer in a database, but some of the items because is beyond the scope of the MEDLARS database collection, will never be replaced by PreMEDLINE or MEDLINE entry, for example in the comprehensive Science (Science or Nature) published articles of geography, etc. The main features of the PubMed system PubMed search The use of the key Details Storage retrieval policy - the use of the URL key The Feature Bar is introduced Retrieve the display of the results, memory disk, and print -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- The main features of the PubMed system Automatic Term Mapping