Pan, Guangjie Upregulation Of circMMP9 Promotes Osteosarcoma Progression Via Targeting miR-1265/CHI3L1 Axis. [electronic resource] - Cancer management and research 2019 - 9225-9231 p. digital Publication Type: Journal Article ISSN: 1179-1322 Standard No.: 10.2147/CMAR.S226264 doi