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. Author manuscript; available in PMC: 2017 Jul 17.
Published in final edited form as: IEEE EMBS Int Conf Biomed Health Inform. 2017 Apr 13;2017:493–496. doi: 10.1109/BHI.2017.7897313

Fig. 2.

Fig. 2

This basic example of a closure table shows three nodes; direct ancestor and descendant relations are represented by solid lines and indirect descendants are represented by dashed lines.