The Power of PubMed
PubMed (with links to full-text holdings) ER login required
PubMed, a service of the National Library of Medicine, includes over 17 million citations for biomedical articles back to the 1950's. These citations are from MEDLINE and additional life science journals. PubMed includes links to many sites providing full text articles and other related resources. Linking to PubMed through the LRC ER gives USUHS patrons access to full text articles in electronic journals available at USUHS.
- Accessing PubMed
- Simple Search
- Display Options
- Function Tabs
- Advanced Search (using the MeSH Browser)
- Citation Matcher for Single Articles
- PMID for Single Citations
- My NCBI (Cubby)
- Saved Searches
- Creating My NCBI LinkOut for USUHS subscriptions
- Ordering Documents through Loansome Doc
From outside the LRC, go to the LRC homepage: http://www.lrc.usuhs.mil and click on PubMed/LinkOut via USUHS from the Quick Links menu. You will need your ER username and password.
From within the LRC, go to the Electronic Resources (ER) page and
- Click on the PubMed w/LinkOut on the tab at the top of the screen
- Or, Choose type PubMed into the query box and choose Indexes and Databases
Formulate your search as a question and decide on key concepts
- In the query window/search box, enter the concepts to be searched.
- The connector AND is implied if no other connecting word is used. If you do wish to use connectors (AND, NOT, OR), they must be in upper case.
- PubMed automatically searches from 1950s to the present.
- Display Options
- The default display Tabs indicate the total number of results (All) and the subset tab of those results which are available in full text electronic or print through (USUHS).
- Click on the tool set icon to add additional tab subsets using MyNCBI.
- The most recently acquired citations are displayed first (Entrez Date order).
- Twenty records per page is the default. Use the Show pull-down menu to change.
- Use the Display pull-down menu to select the desired format of the search results and click Display.
- Summary display is the default display option. It includes author(s), article title, and citation information (journal title, date, etc.).
- The icons indicate: abstract, no abstract, free in PubMed Central (full-text)
- Abstract provides the summary and will display USU print and electronic holdings. The electronic holdings link will take you directly to the full text article.
- Citation adds MeSH terms, as well as the summary, abstract, and contact information.
- The author link will link to the article abstract.
- Use the Send to menu to drop down for Text (printer friendly version), File (to save), Clipboard, Order (LoansomeDoc)
- The Related Articles link runs another search retrieving articles that are related to the article to which it is linked. The order will no longer be chronological.
Function tabs reflect special features available in PubMed. The function of each tab is described below. Click on each tab to operate the function(s) described.
Use the Details tab to see what is really going on with your search. Notice that text words are used as well as MeSH terms. Text terms are especially helpful for you to find citations that have not yet been indexed in MEDLINE.
The Limits tab is used to refine or narrow a search.
- You can restrict your results to a particular language, age group, gender, information field, human or animal, publication type, publication date, or subset.
- You can also apply limits to include author name and/or Journal title.
- The yellow strip above the display button indicates that limits have been applied.
- Once limits are added, you must remove limits if you do not wish to use them for a new search.
Use the Clipboard to create a list of citations to print or save, from the items that you have marked and added to the Clipboard.
- As you view your search results, place checks in the boxes beside the citations you want. Send these items to the Clipboard using the Send to dropdown option.
The articles that you have checked will have green numbers next to them.
- To look at your list of marked citations, Click on Clipboard from the Features bar. The Clipboard can hold up to 500 citations and will remain active for 8 hours.
- You can remove an item from the clipboard by placing a check beside it and clicking on Clip Remove from the Send to dropdown box.
Use the Preview/Index to search within certain fields. Click on the Preview/Index tab.
- Use the drop-down box to show the different fields.
- Enter your search term(s) and click Preview to run your search or Index to view the full database index list.
- History Tab
- The “History” tab allows you to review all of the searches that you have performed within the last 8 hours
- You can combine searches (with AND, OR, NOT) using the search number:
For example, #6 AND #2
- MeSH Medical Subject headings – are assigned by indexers at the National Library of Medicine. It is a controlled vocabulary that provides a consistent way to retrieve information that may use different terminology.
- The MeSH Browser can be found on the left-hand bar under PubMed Services.
- The search begins with the term in bold type. Click on Full in Display box to include subheadings and Do Not Explode this item box and Restrict Search to Major Topic headings only.
- If no exact match is found, a pull-down menu will be displayed from which you can choose the most appropriate term.
- Add puts the search in a text box.
- Add additional search terms with AND, OR, NOT (in capital letters)
Specific features of MeSH can be quickly reviewed in the following short tutorials created by the National Library of Medicine:
- MeSH subject headings are arranged in tree structures
- Explode terms uses all of the terms below the heading
- Restrict Search to Major Topic headings only – Indexers choose approximately three major headings for each article
For more information, view the U.S. National Library of Medicine's, Branching Out: The MeSH® Vocabulary , a 12-minute video covering the development, structure and use of the MeSH® vocabulary.
The Single Citation Matcher requires only a few elements of a citation to retrieve a complete PubMed citation.
- The Single Citation Matcher can be found under PubMed Services on the left-hand tool bar.
- Enter the journal title, year volume, issue, first page, or author’s name. Any of these items may be omitted.
- Sometimes “Less is more”
The PubMed Unique Identifier (PMID) is a unique number assigned to each record in the PubMed database. The PMID number is located at the end of the citation in the "Summary" display format. Citations can be retrieved by searching on this number.
- Enter the PMID number into the the search box and click "Go" to retrieve the citation.
- Search multiple PMID numbers by separating each number with a comma.
My NCBI allows you to save searches, re-run your saved searches, and/or receive E-mail updates of saved searches. You can also use My NCBI to apply filters to your search including a filter for displaying only those items which are available from USUHS electronically in full text or in hard copy on the shelf. In order to get to My NCBI, choose My NCBI from the link on the left-hand side of the screen.
First-time users will need to register for My NCBI. You can use your Cubby user name and password to access My NCBI – if you already have a cubby account.
PubMed recognizes when you are logged into My NCBI.
In order to add searches to My NCBI, do a search in PubMed, and click the “Save Search” link.
Click the yes button if you would like to receive E-mail updates.
You can schedule how often you would like the search alert to run. If you request E-mail updates for your search, an E-mail verification will be sent to you.
You can view all of your saved searches and their scheduled run date. Saved searches can be run manually or scheduled to run as an e-mail alert. Search” link.
My NCBI includes a Filters feature which groups search results by areas of interest. You can have up to 5 active filters by using My NCBI
You can choose the filter with the MEDLINE Limit under Subsets so that you will not get items that are not yet published.
You can apply the USUHS filter to create a subset of only those items available through USUHS subscription and access full text articles electronically.
Click the tool set icon to add or change your filter tabs.
The default short list of commonly requested filters is shown. Choose the Browse tab.
To add a filter (adding the LRC at USUHS for example), choose Libraries under the LinkOut options list.
Scroll down the alphabetical list until you locate Uniformed Services University –Learning Resource Center (USUHS). Click on the link and also check each box under “Selections” to add a result tab and a link icon.
Now, when you run your search(es) a USUHS filter tab will display. Under the USUHS tab are items available from USUHS. Click on the USUHS tab to reveal the citations.
Click on the USU Electronic icon to open the full text article.
Loansome Doc is an online document ordering system provided through PubMed. With Loansome Doc you can place an order for articles that are not owned through subscriptions with USUHS. You must be a registered USUHS LRC patron and you must have a Loansome Doc account in order to use this system.
The Loansome Doc account is free and simple to set-up. For quick instructions on how to register for and order through the Loansome Doc system, view the online tutorial, Loansome Doc. Or, follow these step-by-step instructions:
Click here to Register, and begin ordering articles through Loansome Doc.
To Order Articles:
- Conduct your Search for articles in PubMed:
- Once you've located your article, check the LRC Public Catalog to see if we own the journal:
- If USUHS does not own the journal you can proceed with ordering the article through Loansome Doc.
- The Loansome Doc login and registration screen will appear. (If you have an existing account you can login here and continue the ordering process. If you do not have an account, click Sign Up! to register, and continue ordering.)
- The article(s) you wish to order will appear on your order screen. Click Proceed to Delivery Options to complete your order.
- Review your preset delivery options and change if needed. Check the box confirming you have read the Copyright Compliance information.
- Click the Send Order button to send your order to the system.
Check the Order Status of Your Loansome Doc Request:
View the status of your order(s):
The possible statuses for Loansome Doc articles are:
- Filled - Request was filled on the date shown.
- Pending; Not viewed by library - Request has been sent to your ordering library, but not yet acted upon.
- Pending; Received by library - Request has been viewed by your ordering library. Request is in process.
- Pending; Sent to another library - Request could not be filled by your ordering library. Your library has requested the item via interlibrary loan.
- Could not be filled - Your request was not filled. No further action will be taken by the library.
- Could not be filled; Request Expired – Your request could not be filled before the need by date specified by you. No further action will be taken by the library.
For further information, contact the Reference Librarian. Last updated:07/03/07