| 摘要 |
A method includes defining a plurality of terms for use in conjunction with a study where the terms are stored according to a series of relations and the relations corresponding to the terms indicate an association from a term to at least one other of the plurality of terms, defining at least one group of terms taken from the plurality of terms and storing at least one group of terms, including the relations corresponding to each term, defining a further level of relations to be applied to the group of terms, the further level of relations defining inclusion and exclusion criteria, and providing a match term defined by the group of terms and querying a memory of data from the study to find occurrences of the match term as defined by the further level of relations.
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