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The Basic Fact of UMLS2011AA and the corresponding UMLS graphs.
| # source families | # sources | # CUIs | # links | |V | of UMLS Graph G | |E| of UMLS Graph G | Density (|E|/|V |) | |
|---|---|---|---|---|---|---|---|
| UMLS Level 0 | 43 | 63 | 1,705,032 | 6,237,554 | 720,457 | 5,288,616 | 7.340640732 |
| UMLS Level0 + SNOMEDCT | 44 | 65 | 1,913,320 | 11,821,326 | 987,293 | 7,954,122 | 8.056495893 |
| UMLS Full | 85 | 159 | 2,404,937 | 15,333,246 | 1,339,660 | 9,441,802 | 7.047909171 |
