Emtree Thesaurus 1999

EMTREE, the EMBASE Thesaurus, is a controlled subject vocabulary arranged in a hierarchically-structured cascading "tree".

The printed EMTREE includes over 40,000 drug and medical terms and over 175,000 synonyms including alternative drug names and MeSH subject headings used by the National Library of Medicine.

This three-volume set should be useful for both novice and experienced searchers.

The 1999 edition of the EMTREE Thesaurus incorporates several enhancements, both in layout and information content, that make it easier to use. Volume 1, the alphabetical index, lists all medical and drug terms, with their EMTREE codes which function as entry points for Volume 2.

Also included are a "how to use" section in English, a list of all new terms added in 1999, and scope notes for drug and disease links. Volume 2 is the hierarchical list in which EMTREE terms are arranged in 15 facets, from "Anatomy and Organisms", through "Disease and Drugs" to "Geographical aspects and Healthcare".

It provides useful support for "explosion" searches. Volume 3, the permuted term index, provides an index to every word (other than single digits and letters) contained in EMTREE.

It is an invaluable aid for finding terms if you are unsure of the correct word order - or simply for browsing.