The National Library of Medicine and its databases Lívia Vasas, PhD vasas.livia@semmelweis-univ.hu 2017.

Abbreviations NIH: National Institutes of Health NLM: National Library of Medicine NCBI: National Center for Biotechnology Information MeSH: Medical Subject Heading PMC: PubMed Central AID: Article Identifier DOI: Digital Object Identifier ISSN: International Standard Serial Number NCBI a division of NLM at NIH More info: NCBI Handbook http://www.ncbi.nlm.nih.gov/books/NBK143764/ .

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 - 1960 PubMed - 1996 a database with bibliographic records from journal articles www.nlm.nih.gov/pubs/factsheets/pubmed.html More than 26 million records from 5600 journals (medical, dentistry, nursing, health care,  medical history journals,) Online books are being indexed The MEDLINE records contain Medical Subject Headings (MeSH) Most of the citations are from English-language journals and include abstracts

MEDLINE – a subset of PubMed

More valuable data in MEDLINE records https://www. nlm. nih MeSH terms Publication types Substance name Controlled bibliographic data

PubMed - basic search

Sign in – register for an account (since 2005) from Mozilla 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 (can customize your own filter Useful records can be put into Collections

My NCBI: Tools for Saving Searches, Sharing Information and Receiving Alerts Register for a My NCBI account. Apply user preferences. Save searches. Set up automatic email alerts. Create collections of citations. Share collections of citations.

Apply user preferencies: Manage Filters ….. Properties - Subsets: MEDLINE records http://nnlm.gov/ntc/2015/04/06/pubmed-display-changes-citation-status-tags/ Create custom filter „in process”

Author information My NCBI – NCBI Site Preferencies – Author Information - On

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

Save search …Create alert …

Collections …

Advanced Search Valentin’s Day… The title is: survival time of chocolates on hospital wards - how many images are? 1 4 6 The authors work in universities. True False

Exercise „Create alert” - Saved search ( a subject, one person) „Send to” - Create a collection of any subject with 4 records

Starting at MESH

From MESH

Exercise MeSH term (Entry term): Broken Heart Syndrome The subheading is: psychology The result in PubMed: the number of reviews: 5-25 24-40 41-60 Published in the last 5 years 5-25 40-70 71-80

Search in special journals

Clinical Queries

PMC

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…

http://www. slideshare http://www.slideshare.net/featherr/how-to-conduct-a-systematic-search-10966748?related=1

A proper search Match the question to the source (PubMed, PMC, other database …) Develop a search strategy Step by step (MeSH, free words, filters, etc.)

Own database from the useful records

2013 – PubMed Commons

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

http://www.merriam-webster.com/medlineplus/klinefelter

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 . True False

Questions The Cardiology main MESH term, subheading „trends” will result how much „clinical trial” type publications? 0-15 100-150 10-20 250-300 doi: 10.1714/2190.23668 Type of the publication: Review article comparative study letter

Question 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

Question Child diseased with Ebola. Start the search in MESH. How much review type publications about it in PubMed? 100-200 50-100 0-15 20-50

Doi: 10.1371/journal.pntd.0001359 Is this an open access article? Yes No 10 images are in this article. True False 53 items are in the reference list. True False

doi: 10.1016/j.micron.2015.08.003 Is this an open access article? Yes No The figures can download as PowerPoint slide. True False

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