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PubMed tutorial for resource guide
- 1. PubMed Tutorial http://www.ncbi.nlm.nih.gov/pubmed Locating and Using MeSH terms in PubMed
- 2. This is the first screen you will see upon entering the PubMed database. Follow the steps below to locate the appropriate MeSH terms. • The default choice for the drop down is PubMed. Scroll down until you locate „MeSH‟. • Click on MeSH to begin your MeSH term search. • Enter your natural language term in the search box then click on the search icon. For this tutorial, the natural language term „lesbian‟ will be used. http://www.ncbi.nlm.nih.gov/pubm ed?holding=txuwxtlib_fft_ndi&oto ol=txuwxtlib
- 3. This is the top half of the MeSH page. Enter the natural language term „lesbian‟ in the box to the right of the drop down then click on search. This is the screen which illustrates the MeSH term for „lesbian‟. The MeSH term „homosexuality, female‟ is the search term to use from this point on, either by itself or with a second MeSH term depending on your research needs. • Click on “Add to search builder” to enter the MeSH term into the PubMed search builder • Once term is entered then click on “Search PubMed” to begin the literature search.
- 4. This is the bottom half of the MeSH term page. Each time PubMed searches a MeSh term, it will „explode‟ a term when possible. Two examples are shown for “Homosexuality, Female” in the red box to the right. The top example illustrates a connection between Behavior and Behavior Mechanisms and Homosexuality, Female. In contrast, the second example links Homosexuality, Female to Reproductive and Urinary Physiological Phenomena. These „explosions‟ are referred to as MeSH trees as each descending term branches off of a main MeSH category.
- 5. After clicking onto the search icon, the screen to your right will appear with various articles related to the MeSH term under review. • At this point in your search, it is important to verify the search term as being MeSH. • This can be verified by the appearance of [Mesh] to the right of the term. For the search using “Homosexuality, Female” as the MeSH term the results indicated there are 2099 articles for review. On the left side of the screen, are various filters to be used in further restricting the results. Those listed are the default filters with additional filters located by clicking on the „show additional filters‟ at the top left side of the page. In the upper right corner is the „Send to‟ dropdown, when opened it will allow you to either save your searches to a temporary site (clipboard) or a permanent site (My bibliography).
- 6. For this search, I chose the following filters – publication dates (5 yrs), species (human), article type (systematic reviews), language (English), and age (adult 19+ yrs). From this search, there were seven results. Currency, evidence based medicine, and validity to search term were the reasons these filters were chosen. This is the MeSH equation: "Homosexuality, Female"[Mesh] AND ("2007/08/07"[PDat] : "2012/08/04"[PDat] AND "humans"[MeSH Terms] AND systematic[sb] AND English[lang] AND "adult"[MeSH Terms]) To determine actual relevance to the search underway, reviewing each article is the next step. To open an article link, simply click on the title of the article. Additional articles may be located through the „Titles with your search terms‟ located in the upper right corner.
- 7. This is the abstract for Article #2 from the previous slide. The abstract will assist you in verifying the article‟s relevance to your search parameters. In addition to an abstract, there are three other important areas to use in searching for key articles. These are „Find Full Text” (upper right corner), „Related citations in PubMed‟ (middle right side), and „Recent activity‟ (lower right corner). Each gives the user avenues for accessing full text articles and locating additional sources of information on their search term as well as a visual reminder of articles already viewed during the search.
- 8. An additional feature of PubMed is PubMed Clinical Queries. To begin a search in this area, leave the database default at PubMed, clear the search box then click on the search box (upper screenshot). This action will bring you to the next screen where „Clinical Queries can be located. The lower screenshot shows you where to locate „Clinical Queries‟. Clinical queries allows the user to deepen their research in three areas – Clinical Study Categories, Systemic Reviews, and Medical Genetics.
- 9. Here is the PubMed Clinical Queries search window. Be sure to use only the MeSH term in the search box. Enter the MeSH term then click on Search. In Clinical Study Categories, there are five subheadings – Etiology, Diagnosis, Therapy, Prognosis, and Clinical prediction guides with two scopes – Broad or Narrow to further use to restrict your search. Medical Genetics offers eight subheadings for filtering results – All, Diagnoses, Differential Diagnoses, Clinical Description, Management, Genetic Counseling, Molecular Genetics, and Genetic Counseling. In contrast, Systemic Reviews does not allow for additional filtering via subheadings. For this tutorial, I chose to use Clinical Study Categories – Therapy – Broad as a filtering agent.
- 10. This is the abstract of the first article listed in the screenshot on the previous slide. As with the articles from the general MeSH search, the articles located through „Clinical Queries‟ may be sent to the clipboard and/or My bibliography as well as the PubMed database alerting you to other possible articles through the „Related citations in PubMed‟ link. This tutorial covers some of the aspects offered through the PubMed database. PubMed is worthy of a more thorough review of its capabilities in aiding research by health professionals.