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Unified Medical Language System® (UMLS®)

MetamorphoSys. Rich Release Format Browser: Search By Code.

Keyboard controls: Space bar - toggle play/pause; Right and Left Arrow - seek the video forwards and back; Up and Down Arrow - increase and decrease the volume; M key - toggle mute/unmute; F key - toggle fullscreen off and on.

Alternatively, you can download and play the mp4 video file (40 MB) and the
caption file.


Last Reviewed: April 17, 2018