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. Author manuscript; available in PMC: 2018 Mar 29.
Published in final edited form as: Stud Health Technol Inform. 2015;216:795–799.

Figure 1.

Figure 1

Levels of transformations for the 5,384 mappings between HPO and SNOMEDCT Classes (ORI : original HPO terms; R=Replace transformation; S=Split transformation; D0/D1= Demodification transformations)