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Automatic Term Mapping

When you use no quotation marks, tags or asterisks, PubMed uses an Automatic Term Mapping feature to search for:

in that order.

As soon as PubMed finds a match, the mapping stops. That is, if a term matches a subject, PubMed does not continue to look for that term as a journal.

If no match is found, PubMed breaks apart the phrase and repeats the process until a match is found.

The phrases and individual terms are also searched in All Fields.

You can see this process at work by looking at your Search details.

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