Product Guide


Welcome to uCentral, Unbound Medicine’s mobile + web application used to deliver answers to your clinical questions at the point of need. uCentral brings clinical references and journal literature to you where you need it - on your smartphone, tablet, and on the web.

What’s New?
  • Completely redesigned interface for easier navigation
  • Grapherence ™ - a brand new tool which allows you to visualize relationships between medical reference articles (currently available on the web and iOS devices)
  • Enterprise-wide web access without registration
  • Mobile Administration - administrators can easily distribute the uCentral mobile app for iOS (iPhone, iPad), Android, and BlackBerry. Access powerful usage statistics to better serve your users.
  • Tablet interface - uCentral has been designed to easily deliver information on most modern tablets, from iPads to Galaxies and more.

  • Universal search across content
  • Includes trusted, must-have clinical references
  • Custom mobile platforms and optimized performance for smartphone and tablet: iOS (iPhone and iPad), Android, BlackBerry
  • Literature support and content updating for evidence-based practice
  • Customize content to fit your needs
  • Search Unbound MEDLINE
  • Free customer support
  • Available on all major smartphones and tablets

Browser Requirements

uCentral is opitmized for the following minimum browser requirements:

  • Firefox - 13.0 and higher
  • Chrome - 20.0 and higher
  • Safari - 5.0 and higher
  • Internet Explorer - IE 9 and higher



Use your homepage to quickly move between the components of uCentral. A brief description of each follows, with more detail available in the individual sections.

Browse. This section lists the content resources to which you are subscribed.

Search. Search across all of your content resources using the search box at the top of the page. You can do this from anywhere within uCentral.

Favorites / Recently Viewed. Use the panel on the upper right of your homepage to review your list of favorites and recently viewed items at-a-glance.

Medline - Select the Medline tab from your homepage to connect with and search over 20 million journal articles.

Mobile - Select this tab to manage which journals and/or content resources you’d like on your mobile device, or to install / reinstall the uCentral app.


The Browse section lists the content resources to which you are currently subscribed. To customize the display to your preference, use the buttons at the bottom left to switch between table view and shelf view.

In addtion, you can select the Browse link from anywhere within uCentral to access a dropdown list containing all of your content resources.



Use the Favorites feature to create a list of important records and searches that you can quickly return to at any time. On the Favorites page you’ll find all of the records and searches you’ve marked as a Favorite.

Create and Remove Favorites

To create a Favorite, perform a search, then navigate to the record you would like to mark. Next, simply click the star icon on the right side of the screen. That record will now appear in your Favorites list.

To remove a Favorite do either of the following:

  1. Return to the record and deselect the star icon by clicking the highlighted star.
  2. Go to the Favorites page, then click the trash can icon to the right of the favorite you want to delete.

Manage your Favorites

uCentral offers several tools to customize your Favorites page:

  • Order your list - click the title of the column by which you want to organize: Source, Title (alphabetical) or Date.
  • Tags - Tags are descriptive keywords which you can attach to entries to help find them later (e.g. "cardiac studies", Lancet, etc). You will find a tag icon below each favorite, click the icon and enter your keyword to create your tag.
  • Filter by Tag - In the upper right corner of the page you’ll find a dropdown list labeled Filter by Tag. As you add tags they will appear in this menu. To filter your favorites by a particular tag, simply select it from the dropdown menu.


Search Content

To search uCentral from any page within the application, enter the desired term in the box labeled "Search uCentral" and click the magnifying glass icon. Your search results will appear with the corresponding resource icon to the left.

Display Limited Search Results

By default, all of your content resources are searched and displayed. To filter your results by a particular content resource, use the "Refine Your Search" feature found in the left navigation panel. Simply click the resource by which you would like to filter. To view all of your results again, click "All Results" at the top of the left navigation bar.

Advanced Search
uCentral’s search mechanism supports searching techniques which involve changing query terms to provide a wider range of searching options. For example, you can perform:

Wildcard Searches: Single and Multiple Character

To perform a single character wildcard search, use the "?" symbol in place of a single character. The search then looks for all terms that match the
word with the single character replaced. For example, to search for hyperthermia or hypothermia, use hyp?thermia.

Multiple character wildcard searches look for results which include your search term, plus 0 or more characters. Place an asterisk after your query term to perform this type of search. For example, to search for long, longer or longest, you would use: long*

Wildcard searches can also be placed in the middle of a term. For instance: l*ng. This will search for a word that starts with "l" and ends with "ng".

Boolean Searches

A Boolean Search combines search terms through the use of specific connecting words called operators. Unbound supports: "AND", "+", OR, NOT and "-" as Boolean operators. Boolean search operators must be in ALL CAPITAL LETTERS.

The most frequently used Boolean operators are “AND” and “OR”.

Example 1
: The default operator is "OR". If you do not enter any operator between search terms, "OR" is used. For example, entering "heart lungs" will search for single documents where either the term "heart" or "lung" appears.

Example 2
: The AND operator will find documents where both search terms exist in a single document. For example, entering "heart AND lungs" will find results containing only BOTH "heart" and "lungs" in a single document.


The Mobile page allows you to manage the content on your mobile device. After you’ve made changes or updates, open the app on your device and sync.

MEDLINE Journals

Here you can view the journals which currently reside on your mobile device.

  • To add journals, click the "Add More" link to the right of this section. You’ll be presented with a new screen which lists all available journals alphabetically. Check the box to the right of the title(s) you desire.
  • To remove a journal, uncheck the box next to its title and it will be removed from this section.

Reference Content

The content resources which currently reside on your mobile device are listed in this section with a checked box preceding their title.

  • To add content, check the box next to the title you desire.
  • To remove content, uncheck the box.

Any modifications to your content will appear on your mobile device after you open the app and sync your device.

Install to a Mobile Device
The upper right corner of this section displays the device to which uCentral is currently installed. If you wish to install the app to a new device, click "Install to a new device" and follow the on-screen instructions.



Unbound MEDLINE Search

Unbound MEDLINE connects you to over 20 million journal articles via smartphone, tablet, or the Web.

Click the Medline tab at the top of your homepage to access the Medline search page. From here you can submit search terms in one or more of the available fields: Keywords, Author, and Journal.

Search terms are directed to the Medline database as a keyword. Enter the desired term in one or more of the text boxes and click the search button.
You may place the following limits on your search:

  • Human Subjects
  • Full Text
  • Free Full Text
  • English
  • Publication type (Journal article, review, etc)
  • Date of publication

The retrieved records will be displayed on a new results page.

Clinical Search

Clinical Search

Clinical Search provides a filtered search of the Medline database. Filters may reduce the number of citations a search returns, but may increase the likelihood that the citations found will be relevant.

Filtered Search:
Unbound MEDLINE offers several parameters by which you can limit your clinical query:

  • Category - Therapy, Diagnosis, Etiology, Prognosis
  • Emphasis - Precision, Completeness
  • Language - English only, Full Text, Free Full Text

The retrieved records will be displayed on a new results page.

MEDLINE Search Results

MEDLINE Search Results

Here you will find a list of your search results. At the top of this list appears a summary of the search you entered, including any limiting parameters and the total number of results found. For example: "heart[keywords] AND Journal Article[publication type] 594,881 results."

Favorite your Search -
If you’ve created a search that you would like to quickly run again at a later time, mark your search summary as a favorite. To do this, simply click the star to the right of the entry. Your saved search will then appear in your list of favorites.

If the number of results requires more than one page, continue scrolling downward and the page will continually refresh to display more items.

Additional links
When available, additional navigation links will be found following each search result. These may include: Abstract or Publisher Full Text.

  • Abstract - Click the plus [+ Abstract] link to reveal the abstract of a record. Click the [- Abstract] link once again to close it.
  • Publisher Full Text - This link provides either the actual full text or a link to the site of the full text. Depending on the publisher, you may need an access code to obtain the complete text.

Grapherence (TM) Navigation

What is Grapherence?

Grapherence™ is a tool which helps you see relationships between medical reference articles. It allows you to explore the connections between articles by displaying these relationships visually.

Each Grapherence map consists of a central article surrounded by a group of nodes. Each node represents an article which relates back to the central one. On each node you’ll find two numbers, each with an accompanying arrow. Here’s what they mean:

  • Inbound Links: The number of articles that cite the central article. The arrow points toward the central article.
  • Reference Button: Tap to reveal more information about this article: author(s), abstract, citation, etc.
  • Outbound Links: This is the number of articles cited by the central article. The arrow points away from the central article.
  • The Spectrum: The color of each node is dynamic and changes based on the number of INBOUND links. The more inbound links a node has (i.e., the more articles citing it) the more pink it becomes. On the other hand, the fewer inbound links a node has the more purple it becomes.
  • Arrows: The arrows represent one article citing another. They are color coded to differentiate their varied purposes:
    • Blue - The blue arrow points toward articles cited by the main article
    • Green - The green arrow points toward articles which cite the main article.
    • Gray - The gray arrow indicates citations which do not directly involve the main article.

NOTE: Grapherence is currently available on the web and for iOS devices. On the web, it is currently supported by the recent versions of the following browsers:

  • Firefox - 13.0 and higher
  • Chrome - 20.0 and higher
  • Safari - 5.0 and higher
  • Internet Explorer - IE 9 and higher

User Guides

For more detailed information relevant to the type of device you use, click the appropriate link:



Who should I contact with questions about the application?

If you need any help with this application, please be sure to visit our support website at:

Here you can request your serial number, download install files, read FAQ’s or submit a support request.