Table 4.

Reference databases and ontologies used to normalize the entities extracted from text

Order	Drug	Gene	GenomicVariation	Phenotype
1 st	MeSH	NCBI Gene	dbSNP	MeSH
2 nd	ChEBI	PGxLOD	PGxLOD	MEDDRA
3 rd	ATC			PGxLOD
4 th	PGxLOD

PGxLOD means that a local URI is created