Fig. 6.

An aggregate partial-area taxonomy, derived using a bound of 20, for the NCIt Disease, Disorder, or Finding hierarchy. All partial-areas that summarize fewer than 20 classes in the complete partial-area taxonomy are not shown and have been aggregated into their closest larger ancestor partial-areas. For example, in the aggregate partial-area taxonomy the Nervous System Disorder aggregate partial-area (selected by the user and therefore highlighted in yellow) summarizes 536 classes and 418 “small” partial-areas that would summarize fewer than 20 classes each.