Scientific DataPubMed knowledge graph 2.0: Connecting papers, patents, and clinical trials in biomedical scienceJian XuChao YuJiawei XuVetle I. TorvikJaewoo KangMujeen SungMin SongYi BuYing Ding2025-06-17Full textDOI https://doi.org/10.1038/s41597-025-05343-8