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Figure 1. Growth of the xenopus anatomy ontology. In the course of its major public releases since 2008, the number of terms in the ontology has grown by 87% and the number of part_of and develops_from relationships has substantially increased. The majority of terms in the initial release lacked definitions and is_a parents, while the latest release (October 9, 2013) is definition- and is_a-complete.

Image published in: Segerdell E et al. (2013)

Image downloaded from an Open Access article in PubMed Central. Copyright ©2013 Segerdell et al.; licensee BioMed Central Ltd.

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