Figure 2:

A screenshot of the general layout of Query Builder, with ontological browsing and query generation support. The left, unshaded area supports the searching of terms and browsing of the ontology (A). The light-green shaded area in the middle and right for query construction (B), with automatically generated widgets for slider bars and selection boxes. Query widgets can be reordered, re-grouped with different combination of boolean operations (C). The immediate sub-codes or subcategories of a term are displayed together with the leading term, allowing fine-tuned selection of a subgroup of the sub-codes as well as checking the box to include all subtypes, transitively (D). Clicking a subcategory generates a new query widget with that subcategory as the leading term, again with all of its sub-codes displayed in a new area (E). A live count of 5 unique beneficiaries of Hispanic female with gallbladder cancer is displayed, among a total of 200,512 female and 7,223 Hispanic patients (F).