The National Library of Medicine and its databases a PhD Lívia Vasas lvasas@lib.sote.hu 2015

Objectives History of MEDLINE PubMed/ Medline records MeSH headings, major topics, subheadings Basic PubMed search My NCBI - display manipulate From PubMed bibliographic record to fulltext Chemicals – PubChem BioAssay, Compound, Substance

Abbreviations connections MeSH: Medical Subject Heading PMC: PubMed Central NLM: National Library of Medicine: NIH: National Institutes of Health NCBI: National Center for Biotechnology Information. AID: Article Identifier DOI: Digital Object Identifier ISSN: International Standard Serial Number NCBI belongs to NLM and NLM itself is a department of NIH.

MEDLINE – Definition History The MEDLINE database is the electronic counterpart of Index Medicus®, Index to Dental Literature, and the International Nursing Index, taken care by NLM. MEDLINE is the most used medical bibliographic database.

MEDLINE -1964 a database with bibliographic records from journal articles More than 24 million records from 5600 journals (medical, dentistry, nursing, health care,  medical history journals, Online books are being indexed The records contain Medical Subject Headings (MeSH) Most of the citations are from English-language journals and include abstracts.

Only a free word search

A record from PubMed

MEDLINE - PubMed These databases work on the same base MEDLINE (OVID, EBSCO etc) Subsciption service Qualified records with MESh terms, more subheadings, Value added services PubMed Free of charge, open access Special records (in process…as supplied by publ… indexed for Medline ) Updated daily

PubMed (90% MEDLINE records, 2% in process, 8 % others) PubMed - in process PubMed - as supplied by publisher PubMed - indexed for MEDLINE

PubMed - basic search

Search results - Display settings

Sign in – register for an account Do not use special characters at registration (– á Ö . : ; *) Detailed search question can be saved: „Save search” E-mail notification if there are new records for a search „Manage Filters” settings will remain Useful records can be put into Collections

PubMed possibilities Show additional filters Display settings Send to Save search Advanced search Results by year PMC images search for Titles with your search terms free full-text articles in PubMed Central Search details Recent activities PubMed Commons

Collections ….

Starting at MESH

This search is still not a good search…. Analize the result to find more relevant keywords– rethink the search process Special attention to the publication types…

Type of publications

Clinical trial

Evidence Pyramid http://library.downstate.edu/EBM2/2100.htm

2013 – PubMed Commons

http://www.ncbi.nlm.nih.gov/gquery/

NLM - catalogue

PubMed Central - PMC

MedlinePlus – for everybody http://www. nlm. nih

Free access to books and documents

Questions MEDLINE contains less records than PubMed. True False The DOI number: 10.1167/iovs.13-13562 The article has an author called Szel A .

Questions The Cardiology main MESH term, subheading trends will result how much „clinical trial” type publications? 0-10 100-150 10-20 250-300 doi: 10.1161/CIRCULATIONAHA.114.013338 Type of the publication: Review article editorial letter

Questions The correct DOI number of the article which has Vasas and Berhidi as authors, and was published in 2013 is: 10.1556/.2013.29653 10.1556/OH….29653 10.1556/OH.2013.29653

Questions Child diseased with Ebola. Start the search in MESH. How much review type publications about it in PubMed? 100-200 50-100 0-10 20-50

Thank you for you attention!