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Help > How to Browse > Treatment/Intervention
National Guideline Clearinghouse (NGC) Disease/Condition Browse is based on the U.S. National Library of Medicine's (NLM) Unified Medical Language System (UMLS).
UMLS concepts are arranged hierarchically with more specific concepts ("sub-concepts") arranged beneath broader concepts.
You can choose to browse a list of Drug and Chemical concepts or a list of Procedure, Technique and Device concepts.
For example: Diagnostic Imaging (2) List all guidelines
Clicking on this link will display a list of all guidelines linked to the concept "Diagnostic Imaging" as well as those guidelines linked to any of its sub-concepts (e.g., "Radiography," "Radionuclide Imaging," "Ultrasonography").
Once you have displayed a list of guidelines, you can choose to: