Table 1.

Similarity among sources (top 15 pairs)

Families of terminologies		Similarity	Number of redundant relations
HL7	VANDF	0.81	160
SNM-2	SNMI	0.79	12,537
HHC	NAN	0.72	18
ICPC-1	ICPC-2	0.70	373
MMX	NDDF	0.66	3,366
MMSL	MTH	0.63	49,581
DSM-3R	DSM-4	0.50	83
MESH	MTH	0.34	17,351
CTV3	ICD-10	0.33	3,433
AOD	MTH	0.32	12,918
CTV3	ICD-9-CM	0.28	3,433
CSP	MTH	0.27	9,153
CTV3	MTH	0.23	11,757
ICD-10	ICD-9-CM	0.23	1,438
CSP	MESH	0.21	3,020