Figure 5. miR-504 levels in osteosarcoma tissues. (A) The detail expression of miR-504 of case 1-20 was shown. (B) The detail expression of miR-504 of case 21-35 was shown. (C) ROR1-AS1 was lower in osteosarcoma tissues compared to no-tumor samples. (D) Pearson's correlation assay showed one negative correlation between miR-504 and ROR1-AS1 in osteosarcoma tissues.