Select one of the following:
Select this option if you do not have, MetamorphoSys or if you do not wish to use a previously saved Metathesaurus configuration.
Select this option to open a previously created Metathesaurus subset configuration file.
Click to end the MetamorphoSys subset creation process and return to the Welcome screen.
For more information, see the UMLS Release Documentation, Chapter 6, MetamorphoSys, at: