Figure 3.

(a) An excerpt of concepts from NDF-RT’s Pharmaceutical Preparations (PP) and Chemical Ingredients (CI) hierarchies. On the left, drug concepts in the PP hierarchy with no dosage information have a shaded background. On the right, nine drug ingredient concepts have red borders and five classification ingredient concepts have a pink background. Two concepts, Aminosalicylic Acid and Warfarin, are both drug ingredient concepts and classification ingredient concepts, i.e., they are dual ingredient concepts. Ethyl Biscoumacetate is neither a drug ingredient concept nor a classification ingredient concept, i.e., it is an uncategorized ingredient concept. (b) CI grouped. Drug ingredient concepts are not shaded and their lowest common ancestor classification ingredient concepts are shaded. Each drug ingredient concept is color-framed according to its lowest common ancestor classification ingredient concept. (c) The IAbN for Figure 3(a). Ingredient groups are shown as boxes that are labeled with the name of the lowest common ancestor from 3(b). In each box are the total number of ingredient concepts summarized by the group, and the total number of drug concepts (without dosage information!) with has_Ingredient roles pointing to the CI hierarchy. Child-of links between ingredient groups are shown as upward directed bold arrows.