PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 30518744-8 2018 RESULTS miR-29a, miR-29b, and miR-29c were significantly downregulated in MG-63/MTX and U2OS/MTX cells and in chemotherapy poor-response osteosarcoma tissues. Magnesium 74-76 microRNA 29a Homo sapiens 8-15