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Unified Medical Language System® (UMLS®)

Unified Medical Language System (UMLS). MetamorphoSys. Rich Release Format (RRF) Browser: Limit a Search by Source.

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The video contains a tutorial.

This video can be seen directly at http://www.nlm.nih.gov/research/umls/user_education/quick_tours/MMSys/limitSearchBySourceN.mp4

The captions are available at http://www.nlm.nih.gov/research/umls/user_education/quick_tours/MMSys/limitSearchBySourceN.srt