Access via PAY PER ARTICLE (expires 13 Mar 02 8:28 PM Eastern Time)

Major Features of SCIENCE Online
CiteTrack Track the topics, authors and articles important to you
eTOCs Be notified via email when new content goes online
Pay for Access Access a single SCIENCE Online article or all content in SCIENCE Online
Cross-Journal Searching Search across multiple journals
Inter-Journal Links Hyperlink from reference citations to the articles to which they refer
Searching Medline Custom Medline search service
Exporting Citations Acquire article citations in the Medlars format
Viewing Figures View the 3 versions of figures online
Printing HTML and PDF versions of most articles are available
Browsing View the contents of SCIENCE Online
Searching Search the contents of SCIENCE Online


CiteTrack will immediately alert you by email whenever new content in SCIENCE Online or a participating journal is published that matches criteria based on the topics, authors and articles you want to track. Sign up now!


Be notified immediately via email when new content goes online. Sign up now for FREE!

Pay for Access

For US$5.00 you can have access to one SCIENCE Online article for 24 hours. Browse through the available online content and select the article you want access to. When you are prompted to sign in, select the "Pay per Article" option.

For US$10.00 you can have access to all content in SCIENCE Online for 24 hours. At any point when you are prompted to sign in to SCIENCE Online, select the "Science Online Site Pass" option.

Cross-Journal Searching

SCIENCE Online lets you search across multiple journals.

After performing a search in SCIENCE Online, you can perform the same search in other journals through the "pulldown menu" at the top of the search result page entitled "Try this search in:..." Selecting a journal title and clicking the "Search" button will start a search using the previously specified criteria in the selected journal.

Inter-Journal Links

So that you can quickly and easily move from articles to the full text of cited references, we have created hyperlinks from reference citations to the articles to which they refer.

When an article in SCIENCE Online cites an article from another HighWire-based journal, hyperlinks have been created which allow you to move from the original article to the abstract of the cited article. Likewise, links have been created to allow users of other HighWire-based journals to quickly and easily access SCIENCE Online articles. [List of Participating Journals]

These Inter-Journal links take you to the abstract of the cited reference. Limited free access may be granted to allow you free use of the single article which was cited by the original article.

Searching Medline

As a service to subscribers, we are developing a custom Medline Search Service. This service, will let you search the citations and abstracts in the Medline/PubMed database as well as material not present in conventional Medline databases, and will provide advanced search and retrieval features specifically designed for the readers of online biomedical journals.

Until this new service is available, use the new Experimental Medline / PubMed search system available from the National Center for Biotechnology Information.

The PubMed search system provides access to the PubMed database of bibliographic information, which is drawn primarily from Medline and PreMedline. In addition, for participating journals that are indexed selectively for Medline, PubMed includes all articles from that journal, not just those that are included in Medline. Finally, PubMed also provides access to the molecular biology databases included in NCBI's Entrez retrieval system. It is expected that access to additional National Library of Medicine databases will be added in the future.

Exporting Citations

We provide a simple and direct method of acquiring article citations in the Medlars format compatible with import into personal bibliographic management software such as EndNote, Reference Manager, or ProCite.

To export citations with Abstracts for any SCIENCE Online article to a citation manager program, the following steps are suggested:

  1. View the abstract or Full Text article of interest

  2. Click the [Download to Citation Manager] link above the article title.

  3. When the tagged version of the citation is displayed, scroll until the "Save" button can be seen.

  4. Select your preferred format (Macintosh, PC or Unix) from the "Save" menu and click the Save button.

  5. Select the directory you wish to save the file in and give the file a unique name.

  6. Follow the instructions that came with your citation manager to import the reference into your personal bibliographic database

If your citation manager does not support import of Medlars format, you may still use the Download function. After saving the citation to your local disk, open the citation file and manually copy/paste the information in the file into the appropriate fields in your personal bibliographic database.

Viewing Figures

Thumbnail Images:

A "thumbnail" -- a small version -- of each figure or equation appears in the text. In most cases, these thumbnails are sufficient to permit you to decide if you want to see the larger version(s).

Medium-Sized Images:

Clicking on a thumbnail opens a second window in your browser that displays a larger version of a table or figure, as well as the complete text of the figure's caption. You don't need any additional software to view this medium-size image.

Large, High-Resolution Images:

To view a high-resolution version of a figure, click on the medium-sized image or the link to "[View Larger Version of this Image]". Browsers can be used to view high-resolution images, but we recommend using a helper application instead. Read about obtaining and configuring a graphics viewer under the appropriate section: Macintosh, Windows, or Unix.


  • Articles: Print the "Reprint (PDF) Version of this article" version for output that closely resembles the paper version of SCIENCE Online.

  • Abstracts, tables of contents, search results: Use your browser's Print function.

  • High-Resolution figures: JPEGView for Macintosh or LViewPro for Windows.

Please see Help with Printing for more detailed information.


To view the contents of the current issue, click on the "Current Issue" link on the home page. The table of contents also includes a link to an index of authors for the current issue.

To view the contents of any online issue, click the "Browse All Issues" button at the top of most pages. This will display a list of the issues that are available for browsing.

To search the contents of all online issues, click the "Search All Issues" button at the top of most pages.

When viewing the table of contents for an online issue, you can search for words in the text of the articles in that issue by entering words in the search box and clicking the Enter button. Read Help with Searching to learn how searching works in SCIENCE Online.


Please see Help with Searching for detailed information on searching SCIENCE Online.

To search SCIENCE Online, enter search terms in the spaces provided. Select a date range if desired. Note that if you do not change the date range provided, your search will cover all available issues. Click the Start Search button.

Titles of articles retrieved as a result of searching are returned in relevance ranked order. The "closest matches" will be articles that match more of your search terms, that match your terms more closely, that have more occurrences of any one term, and that have occurrences earlier in the Abstract or article. You have several choices as to the number of "closest matches" retrieved.

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Copyright © 2002 by The American Association for the Advancement of Science. All rights reserved.