Table 2 Statistics of node types.

From: PubMed knowledge graph 2.0: Connecting papers, patents, and clinical trials in biomedical science

Node type

Statistics

Describe

Article

36,551,113

Papers from PubMed

Patent

1,344,469

Patents from USPTO

Clinical Trials

480,795

Clinical trial studies from ClinicalTrials.gov

Author

26,217,594

Disambiguated authors in PKG

Institution

69,457

Disambiguated institutions identified with ROR

BioEntity

357,686

BioEntities extracted by BERN2

Journal

21,382

Journals mapped with SciMago

Project

2,023,148

Projects funded by NIH