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Find: (To find an exact phrase, enclose it in double quotes, e.g., "heart rate".)
Look for results: with all of the words with any of the words matching the expression (hints) Look in: all of PhysioNet PhysioBank PhysioToolkit Challenges Publications Discussions Tutorials	Show: words in context page titles only 10 25 100 results per page Sort results: best matches first best matches last newest pages first oldest pages first in A-Z order in Z-A order

There are two ways to search for text on PhysioNet:

• Quick search: Type one or more words in the text box that appears in the upper right corner of most pages on this site, and click on the Search button to its right. Quick searches use Google Custom Search, and newly posted material may not appear in quick search results for a few days.
• Advanced search: Use the form above, typing your search terms in the box next to Find. Advanced searches use the freely available ht://Dig indexing and search engine running on the master PhysioNet server. The advanced search indices were most recently updated on Wednesday, 15 April 2009 at 05:07 EDT.

  Wildcards: '*' matches any string of characters at the end of a word only. For example, digit* matches digital, digitalis, digitally, and digitize, as well as digit (the string matching '*' can be empty).

  Exact matches: By default, searches include common variations of your search words (for example, a search for ECG expands to a search for any of ECG, ECGs, EKG, EKGs, electrocardiogram, and electrocardiograms). Enclose the word or phrase in double quotation marks to find exact matches only. Note, however, that all searches are case-insensitive ("ECG" matches ecg, for example).

  Boolean expressions: If you look for results matching the expression, you may use and, or, not, and parentheses in your search. Example:

  ("congestive heart failure" or CHF) and "heart rate variability"

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If you didn't find what you were looking for on PhysioNet, you may wish to try searching one of our affiliated laboratories' web sites:

• Laboratory for Computational Physiology at MIT, in the Harvard-MIT Division of Health Sciences and Technology; the home of the master PhysioNet server
• Margret & H.A. Rey Laboratory for Nonlinear Dynamics in Medicine at Boston's Beth Israel Deaconess Medical Center

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