Advanced

Advanced Search provides great flexibility and control over the Embase search experience. It offers many options, including:

  • Searching words or phrases with or without Emtree mapping and/or explosion
  • Specifying a time period, either for article publication years or material added to the database during a specified timeframe
  • Applying commonly-used limits such as human/animal subject, English (or other languages), evidence-based studies, specific patient populations, gender, etc.

Note that all of the functions included in Quick Search’s Extensive Search to your search (term mapping, explosion and keyword/free-text searching) are available separately here; each can be chosen (or not) to meet each query’s individual requirements.

Advanced Search also provides a large text box for typing queries, giving you enough space in which to compose longer and more sophisticated search statements than in Quick Search. You may also choose to add one or more Field Limits to your search.You may find more information on how best to enter several terms in your search by consulting the Search Hints section.

Very important:

Enclose multi-word phrases in quotation marks; they can be either single or double quotes, as long as they match each other. This will ensure your phrase is searched as words adjacent to each other, in the order given. For instance, ‘drug resistance’ retrieves:

chronic myeloid leukemia (drug resistance, drug therapy)

If quotes are omitted, the words are processed with a Boolean AND operator, which can result in a large quantity of irrelevant results (“false hits?), since the terms can occur at some distance apart from each other within a database record. Drug resistance (without quotes) can result in:

“Inflammation of the brainstem microvasculature may increase vascular resistance ...? (in the abstract) and “essential hypertension (drug therapy, etiology) (in the indexing).

Hyphens may also be used instead of quotation marks but please note this means that hyphenated words are interpreted as phrases. For example:

pre-existingwill be searched as 'preexisting' so it is best to also include pre+existing in your search.