Figure 2From: Discovering relations between indirectly connected biomedical conceptsGrowth of UMLS Metathesaurus in the past decade. In this plot, the growth of the UMLS metathesaurus in terms of number of included concepts is presented. The plot refers to the period from 2002 until the present. For this past period, the growth curve is steep, approximating an exponential tendencyb.Back to article page