PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 33628103-1 2021 Background: Sorafenib, an oral multi-kinase inhibitor of rapidly accelerated fibrosarcoma; vascular endothelial growth factor receptor-2/3, platelet-derived growth factor receptor, c-Kit, and Flt-3 signaling, is approved for treatment of advanced hepatocellular carcinoma (HCC). Sorafenib 12-21 kinase insert domain receptor Homo sapiens 91-138