CDISC Transformer: a metadata-based transformation tool for clinical trial and research data into CDISC standards. - Yu Rang Park; Hye Hyeon Kim; Hwa Jeong Seo; Ju Han Kim (KSII Trans. Internet Inf. Syst., 2011)

Establishing Semantic Interoperability of Biomedical Metadata Registries using Extended Semantic Relationships. - Yu Rang Park; Young Jo Yoon; Hye Hyeon Kim; Ju Han Kim (MedInfo, 2013)

MELLO: Medical lifelog ontology for data terms from self-tracking and lifelog devices. - Hye Hyeon Kim; Soo Youn Lee; Su Youn Baik; Ju Han Kim (Int. J. Medical Informatics, 2015)

Clinical MetaData ontology: a simple classification scheme for data elements of clinical data based on semantics. - Hye Hyeon Kim; Yu Rang Park; Kye Hwa Lee; Young Soo Song; Ju Han Kim (BMC Medical Informatics Decis. Mak., 2019)

Composite CDE: modeling composite relationships between common data elements for representing complex clinical data. - Hye Hyeon Kim; Yu Rang Park; Sue-Hyun Lee; Ju Han Kim (BMC Medical Informatics Decis. Mak., 2020)