A Review on the Application of Knowledge Graph Technology in the Medical Field

Table 1

Common knowledge bases of medical ontology.

Name	Data type	Amount of data
SNOMED-CT	Standard of clinical medical terminology	146,217
UMLS	Unified Medical Language System	Concept: 3,000,000; Name: 1,200,000
CMeKG	Chinese medical knowledge graph	Diseases: more than 10,000 kinds
		Drugs: nearly 20,000
		Symptoms: more than 10,000 kinds
		Diagnosis and treatment technology and equipment: 3,000 kinds
		Concepts, relationships, and attributes: 1,560,000